11672431 has 4 divisors (see below), whose sum is σ = 12179952. Its totient is φ = 11164912.

The previous prime is 11672429. The next prime is 11672449. The reversal of 11672431 is 13427611.

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 11672431 - 2¹ = 11672429 is a prime.

It is a super-2 number, since 2×11672431² = 272491290899522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11672396 and 11672405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11672491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253726 + ... + 253771.

It is an arithmetic number, because the mean of its divisors is an integer number (3044988).

Almost surely, 2^11672431 is an apocalyptic number.

11672431 is a deficient number, since it is larger than the sum of its proper divisors (507521).

11672431 is an equidigital number, since it uses as much as digits as its factorization.

11672431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507520.

The product of its digits is 1008, while the sum is 25.

The square root of 11672431 is about 3416.4939631148. The cubic root of 11672431 is about 226.8404177672.

The spelling of 11672431 in words is "eleven million, six hundred seventy-two thousand, four hundred thirty-one".