31104997 has 32 divisors (see below), whose sum is σ = 40771584. Its totient is φ = 23025600.

The previous prime is 31104989. The next prime is 31105013. The reversal of 31104997 is 79940113.

It is a cyclic number.

It is not a de Polignac number, because 31104997 - 2³ = 31104989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198043 + ... + 198199.

It is an arithmetic number, because the mean of its divisors is an integer number (1274112).

Almost surely, 2^31104997 is an apocalyptic number.

It is an amenable number.

31104997 is a deficient number, since it is larger than the sum of its proper divisors (9666587).

31104997 is a wasteful number, since it uses less digits than its factorization.

31104997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 31104997 is about 5577.1854012575. The cubic root of 31104997 is about 314.4923274533.

The spelling of 31104997 in words is "thirty-one million, one hundred four thousand, nine hundred ninety-seven".