31412409 has 8 divisors (see below), whose sum is σ = 47866560. Its totient is φ = 17949936.

The previous prime is 31412389. The next prime is 31412417. The reversal of 31412409 is 90421413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31412409 - 2⁸ = 31412153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31412609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747894 + ... + 747935.

It is an arithmetic number, because the mean of its divisors is an integer number (5983320).

Almost surely, 2^31412409 is an apocalyptic number.

It is an amenable number.

31412409 is a deficient number, since it is larger than the sum of its proper divisors (16454151).

31412409 is a wasteful number, since it uses less digits than its factorization.

31412409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495839.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 31412409 is about 5604.6774215828. The cubic root of 31412409 is about 315.5249799599.

The spelling of 31412409 in words is "thirty-one million, four hundred twelve thousand, four hundred nine".