728787348 has 48 divisors (see below), whose sum is σ = 2000597760. Its totient is φ = 228638592.

The previous prime is 728787347. The next prime is 728787377. The reversal of 728787348 is 843787827.

It is a happy number.

It is a super-2 number, since 2×728787348² = 1062261997209746208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 728787294 and 728787303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728787347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196636 + ... + 200307.

It is an arithmetic number, because the mean of its divisors is an integer number (41679120).

Almost surely, 2^728787348 is an apocalyptic number.

It is an amenable number.

728787348 is an abundant number, since it is smaller than the sum of its proper divisors (1271810412).

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

728787348 is a wasteful number, since it uses less digits than its factorization.

728787348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396973 (or 396965 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 54.

The square root of 728787348 is about 26996.0617127758. The cubic root of 728787348 is about 899.9124803784.

The spelling of 728787348 in words is "seven hundred twenty-eight million, seven hundred eighty-seven thousand, three hundred forty-eight".