11672531 has 4 divisors (see below), whose sum is σ = 12570432. Its totient is φ = 10774632.

The previous prime is 11672513. The next prime is 11672579. The reversal of 11672531 is 13527611.

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

It is a cyclic number.

It is not a de Polignac number, because 11672531 - 2⁶ = 11672467 is a prime.

It is a super-2 number, since 2×11672531² = 272495959891922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11672531.

It is not an unprimeable number, because it can be changed into a prime (11672581) 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 3 ways as a sum of consecutive naturals, for example, 448931 + ... + 448956.

It is an arithmetic number, because the mean of its divisors is an integer number (3142608).

Almost surely, 2^11672531 is an apocalyptic number.

11672531 is a deficient number, since it is larger than the sum of its proper divisors (897901).

11672531 is an equidigital number, since it uses as much as digits as its factorization.

11672531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897900.

The product of its digits is 1260, while the sum is 26.

The square root of 11672531 is about 3416.5085979696. The cubic root of 11672531 is about 226.8410655608.

The spelling of 11672531 in words is "eleven million, six hundred seventy-two thousand, five hundred thirty-one".