70928992 has 48 divisors (see below), whose sum is σ = 145539072. Its totient is φ = 33989760.

The previous prime is 70928939. The next prime is 70929007. The reversal of 70928992 is 29982907.

It is a super-2 number, since 2×70928992² = 10061843812272128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125703 + ... + 126265.

It is an arithmetic number, because the mean of its divisors is an integer number (3032064).

Almost surely, 2^70928992 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 70928992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72769536).

70928992 is an abundant number, since it is smaller than the sum of its proper divisors (74610080).

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

70928992 is a wasteful number, since it uses less digits than its factorization.

70928992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 70928992 is about 8421.9351695439. The cubic root of 70928992 is about 413.9436860866.

The spelling of 70928992 in words is "seventy million, nine hundred twenty-eight thousand, nine hundred ninety-two".