97407031 has 4 divisors (see below), whose sum is σ = 97645600. Its totient is φ = 97168464.

The previous prime is 97407019. The next prime is 97407049. The reversal of 97407031 is 13070479.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97407031 - 2⁵ = 97406999 is a prime.

It is a super-2 number, since 2×97407031² = 18976259376469922, which contains 22 as substring.

It is the 9870-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97406984 and 97407002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97407071) by changing a digit.

It is a nontrivial repunit in base 9869.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118671 + ... + 119488.

It is an arithmetic number, because the mean of its divisors is an integer number (24411400).

Almost surely, 2^97407031 is an apocalyptic number.

97407031 is a deficient number, since it is larger than the sum of its proper divisors (238569).

97407031 is a wasteful number, since it uses less digits than its factorization.

97407031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238568.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 97407031 is about 9869.5000379958. The cubic root of 97407031 is about 460.1118678776. Note that the first 3 decimals are identical.

The spelling of 97407031 in words is "ninety-seven million, four hundred seven thousand, thirty-one".