71928246 has 64 divisors (see below), whose sum is σ = 161796096. Its totient is φ = 21168000.

The previous prime is 71928239. The next prime is 71928247. The reversal of 71928246 is 64282917.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71928247) 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, 365020 + ... + 365216.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 2^71928246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71928246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80898048).

71928246 is an abundant number, since it is smaller than the sum of its proper divisors (89867850).

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

71928246 is a wasteful number, since it uses less digits than its factorization.

71928246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its digits is 48384, while the sum is 39.

The square root of 71928246 is about 8481.0521752905. The cubic root of 71928246 is about 415.8785202182.

The spelling of 71928246 in words is "seventy-one million, nine hundred twenty-eight thousand, two hundred forty-six".