12619906 has 12 divisors (see below), whose sum is σ = 20498562. Its totient is φ = 5824416.

The previous prime is 12619897. The next prime is 12619921. The reversal of 12619906 is 60991621.

It can be written as a sum of positive squares in 3 ways, for example, as 7371225 + 5248681 = 2715^2 + 2291^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18331 + ... + 19006.

Almost surely, 2^12619906 is an apocalyptic number.

12619906 is a deficient number, since it is larger than the sum of its proper divisors (7878656).

12619906 is a wasteful number, since it uses less digits than its factorization.

12619906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37365 (or 37352 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12619906 is about 3552.4507033877. The cubic root of 12619906 is about 232.8191539410.

The spelling of 12619906 in words is "twelve million, six hundred nineteen thousand, nine hundred six".