70898031 has 16 divisors (see below), whose sum is σ = 107874400. Its totient is φ = 45987264.

The previous prime is 70898021. The next prime is 70898033. The reversal of 70898031 is 13089807.

It is a de Polignac number, because none of the positive numbers 2^k-70898031 is a prime.

It is a super-2 number, since 2×70898031² = 10053061599353922, 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 (70898033) 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, 34486 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (6742150).

Almost surely, 2^70898031 is an apocalyptic number.

70898031 is a deficient number, since it is larger than the sum of its proper divisors (36976369).

70898031 is a wasteful number, since it uses less digits than its factorization.

70898031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71015 (or 71009 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 70898031 is about 8420.0968521746. The cubic root of 70898031 is about 413.8834475516.

The spelling of 70898031 in words is "seventy million, eight hundred ninety-eight thousand, thirty-one".