70472916 has 36 divisors (see below), whose sum is σ = 184740192. Its totient is φ = 23490648.

The previous prime is 70472839. The next prime is 70472917. The reversal of 70472916 is 61927407.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70472917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35280 + ... + 37223.

It is an arithmetic number, because the mean of its divisors is an integer number (5131672).

Almost surely, 2^70472916 is an apocalyptic number.

It is an amenable number.

70472916 is an abundant number, since it is smaller than the sum of its proper divisors (114267276).

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

70472916 is a wasteful number, since it uses less digits than its factorization.

70472916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72522 (or 72508 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70472916 is about 8394.8148282139. The cubic root of 70472916 is about 413.0545533137.

The spelling of 70472916 in words is "seventy million, four hundred seventy-two thousand, nine hundred sixteen".