70472831 has 24 divisors (see below), whose sum is σ = 84115584. Its totient is φ = 58524960.

The previous prime is 70472797. The next prime is 70472839. The reversal of 70472831 is 13827407.

It is a happy number.

It is not a de Polignac number, because 70472831 - 2¹⁸ = 70210687 is a prime.

It is a super-2 number, since 2×70472831² = 9932839818309122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70472839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310340 + ... + 310566.

It is an arithmetic number, because the mean of its divisors is an integer number (3504816).

Almost surely, 2^70472831 is an apocalyptic number.

70472831 is a deficient number, since it is larger than the sum of its proper divisors (13642753).

70472831 is a wasteful number, since it uses less digits than its factorization.

70472831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 70472831 is about 8394.8097655635. The cubic root of 70472831 is about 413.0543872468.

The spelling of 70472831 in words is "seventy million, four hundred seventy-two thousand, eight hundred thirty-one".