12611870 has 16 divisors (see below), whose sum is σ = 22927968. Its totient is φ = 4994400.

The previous prime is 12611869. The next prime is 12611891. The reversal of 12611870 is 7811621.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5234 + ... + 7253.

It is an arithmetic number, because the mean of its divisors is an integer number (1432998).

Almost surely, 2^12611870 is an apocalyptic number.

12611870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12611870 is a deficient number, since it is larger than the sum of its proper divisors (10316098).

12611870 is a wasteful number, since it uses less digits than its factorization.

12611870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 12611870 is about 3551.3194730973. The cubic root of 12611870 is about 232.7697258924.

The spelling of 12611870 in words is "twelve million, six hundred eleven thousand, eight hundred seventy".