31411897 has 16 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 27450000.

The previous prime is 31411879. The next prime is 31411907. The reversal of 31411897 is 79811413.

It is a cyclic number.

It is not a de Polignac number, because 31411897 - 2¹⁵ = 31379129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31411817) 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 15 ways as a sum of consecutive naturals, for example, 85408 + ... + 85774.

It is an arithmetic number, because the mean of its divisors is an integer number (2225664).

Almost surely, 2^31411897 is an apocalyptic number.

It is an amenable number.

31411897 is a deficient number, since it is larger than the sum of its proper divisors (4198727).

31411897 is a wasteful number, since it uses less digits than its factorization.

31411897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its digits is 6048, while the sum is 34.

The square root of 31411897 is about 5604.6317452621. The cubic root of 31411897 is about 315.5232656728.

The spelling of 31411897 in words is "thirty-one million, four hundred eleven thousand, eight hundred ninety-seven".