12491672 has 16 divisors (see below), whose sum is σ = 23967240. Its totient is φ = 6100416.

The previous prime is 12491627. The next prime is 12491693. The reversal of 12491672 is 27619421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17813 + ... + 18500.

Almost surely, 2^12491672 is an apocalyptic number.

It is an amenable number.

12491672 is a deficient number, since it is larger than the sum of its proper divisors (11475568).

12491672 is a wasteful number, since it uses less digits than its factorization.

12491672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36362 (or 36358 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 12491672 is about 3534.3559526454. The cubic root of 12491672 is about 232.0278900279.

The spelling of 12491672 in words is "twelve million, four hundred ninety-one thousand, six hundred seventy-two".