31413697 has 4 divisors (see below), whose sum is σ = 35901376. Its totient is φ = 26926020.

The previous prime is 31413677. The next prime is 31413713. The reversal of 31413697 is 79631413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31413697 is a prime.

It is a super-5 number, since 5×31413697⁵ (a number of 39 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (31413617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243829 + ... + 2243842.

It is an arithmetic number, because the mean of its divisors is an integer number (8975344).

Almost surely, 2^31413697 is an apocalyptic number.

It is an amenable number.

31413697 is a deficient number, since it is larger than the sum of its proper divisors (4487679).

31413697 is an equidigital number, since it uses as much as digits as its factorization.

31413697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487678.

The product of its digits is 13608, while the sum is 34.

The square root of 31413697 is about 5604.7923244309. The cubic root of 31413697 is about 315.5292923812.

The spelling of 31413697 in words is "thirty-one million, four hundred thirteen thousand, six hundred ninety-seven".