11700491 has 16 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 10053120.

The previous prime is 11700487. The next prime is 11700497. The reversal of 11700491 is 19400711.

It is not a de Polignac number, because 11700491 - 2² = 11700487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (11700497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25835 + ... + 26283.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^11700491 is an apocalyptic number.

11700491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11700491 is a deficient number, since it is larger than the sum of its proper divisors (1777909).

11700491 is a wasteful number, since it uses less digits than its factorization.

11700491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 11700491 is about 3420.5980471257. The cubic root of 11700491 is about 227.0220436976.

The spelling of 11700491 in words is "eleven million, seven hundred thousand, four hundred ninety-one".