11877431 has 2 divisors, whose sum is σ = 11877432. Its totient is φ = 11877430.

The previous prime is 11877427. The next prime is 11877457. The reversal of 11877431 is 13477811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11877431 - 2² = 11877427 is a prime.

It is a super-2 number, since 2×11877431² = 282146734319522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11877461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5938715 + 5938716.

It is an arithmetic number, because the mean of its divisors is an integer number (5938716).

Almost surely, 2^11877431 is an apocalyptic number.

11877431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11877431 is an equidigital number, since it uses as much as digits as its factorization.

11877431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 32.

The square root of 11877431 is about 3446.3648965250. The cubic root of 11877431 is about 228.1606990107.

The spelling of 11877431 in words is "eleven million, eight hundred seventy-seven thousand, four hundred thirty-one".