11640634 has 8 divisors (see below), whose sum is σ = 17477460. Its totient is φ = 5814816.

The previous prime is 11640623. The next prime is 11640649. The reversal of 11640634 is 43604611.

It can be written as a sum of positive squares in 2 ways, for example, as 9090225 + 2550409 = 3015^2 + 1597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11640599 and 11640608.

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, 822 + ... + 4894.

Almost surely, 2^11640634 is an apocalyptic number.

11640634 is a deficient number, since it is larger than the sum of its proper divisors (5836826).

11640634 is a wasteful number, since it uses less digits than its factorization.

11640634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 11640634 is about 3411.8373349267. The cubic root of 11640634 is about 226.6342509392.

The spelling of 11640634 in words is "eleven million, six hundred forty thousand, six hundred thirty-four".