12470991 has 16 divisors (see below), whose sum is σ = 18686976. Its totient is φ = 7340256.

The previous prime is 12470987. The next prime is 12471001. The reversal of 12470991 is 19907421.

It is not a de Polignac number, because 12470991 - 2² = 12470987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12470971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6055 + ... + 7848.

It is an arithmetic number, because the mean of its divisors is an integer number (1167936).

Almost surely, 2^12470991 is an apocalyptic number.

12470991 is a deficient number, since it is larger than the sum of its proper divisors (6215985).

12470991 is a wasteful number, since it uses less digits than its factorization.

12470991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 12470991 is about 3531.4290308599. The cubic root of 12470991 is about 231.8997721540.

The spelling of 12470991 in words is "twelve million, four hundred seventy thousand, nine hundred ninety-one".