731061828 has 96 divisors (see below), whose sum is σ = 2176849920. Its totient is φ = 207839520.

The previous prime is 731061827. The next prime is 731061833. The reversal of 731061828 is 828160137.

731061828 is a `hidden beast` number, since 7 + 3 + 10 + 618 + 28 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 731061792 and 731061801.

It is not an unprimeable number, because it can be changed into a prime (731061827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157225 + ... + 161807.

It is an arithmetic number, because the mean of its divisors is an integer number (22675520).

Almost surely, 2^731061828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731061828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088424960).

731061828 is an abundant number, since it is smaller than the sum of its proper divisors (1445788092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731061828 is a wasteful number, since it uses less digits than its factorization.

731061828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814 (or 4806 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 731061828 is about 27038.1550406088. The cubic root of 731061828 is about 900.8476902174.

The spelling of 731061828 in words is "seven hundred thirty-one million, sixty-one thousand, eight hundred twenty-eight".