11700638 has 4 divisors (see below), whose sum is σ = 17550960. Its totient is φ = 5850318.

The previous prime is 11700613. The next prime is 11700643. The reversal of 11700638 is 83600711.

11700638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 2925158 + ... + 2925161.

It is an arithmetic number, because the mean of its divisors is an integer number (4387740).

Almost surely, 2^11700638 is an apocalyptic number.

11700638 is a deficient number, since it is larger than the sum of its proper divisors (5850322).

11700638 is an equidigital number, since it uses as much as digits as its factorization.

11700638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850321.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11700638 is about 3420.6195345288. The cubic root of 11700638 is about 227.0229944298.

The spelling of 11700638 in words is "eleven million, seven hundred thousand, six hundred thirty-eight".