12649835 has 16 divisors (see below), whose sum is σ = 16699392. Its totient is φ = 9122400.

The previous prime is 12649823. The next prime is 12649841. The reversal of 12649835 is 53894621.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12649835 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6080 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (1043712).

Almost surely, 2^12649835 is an apocalyptic number.

12649835 is a deficient number, since it is larger than the sum of its proper divisors (4049557).

12649835 is a wasteful number, since it uses less digits than its factorization.

12649835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

The product of its digits is 51840, while the sum is 38.

The square root of 12649835 is about 3556.6606529159. The cubic root of 12649835 is about 233.0030576695.

The spelling of 12649835 in words is "twelve million, six hundred forty-nine thousand, eight hundred thirty-five".