13607649 has 16 divisors (see below), whose sum is σ = 21992640. Its totient is φ = 8246880.

The previous prime is 13607617. The next prime is 13607653. The reversal of 13607649 is 94670631.

13607649 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 7 + 649 = 666.

It is not a de Polignac number, because 13607649 - 2⁵ = 13607617 is a prime.

It is a super-2 number, since 2×13607649² = 370336222614402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13607689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22612 + ... + 23205.

It is an arithmetic number, because the mean of its divisors is an integer number (1374540).

Almost surely, 2^13607649 is an apocalyptic number.

It is an amenable number.

13607649 is a deficient number, since it is larger than the sum of its proper divisors (8384991).

13607649 is a wasteful number, since it uses less digits than its factorization.

13607649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45837 (or 45831 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 13607649 is about 3688.8547003101. The cubic root of 13607649 is about 238.7413797679.

It can be divided in two parts, 1360 and 7649, that added together give a palindrome (9009).

The spelling of 13607649 in words is "thirteen million, six hundred seven thousand, six hundred forty-nine".