867431169 has 24 divisors (see below), whose sum is σ = 1374789312. Its totient is φ = 522666720.

The previous prime is 867431153. The next prime is 867431197. The reversal of 867431169 is 961134768.

It is a happy number.

It is not a de Polignac number, because 867431169 - 2⁴ = 867431153 is a prime.

It is a super-2 number, since 2×867431169² = 1504873665905413122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867431569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8197 + ... + 42450.

It is an arithmetic number, because the mean of its divisors is an integer number (57282888).

Almost surely, 2^867431169 is an apocalyptic number.

It is an amenable number.

867431169 is a deficient number, since it is larger than the sum of its proper divisors (507358143).

867431169 is a wasteful number, since it uses less digits than its factorization.

867431169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50837 (or 50834 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 867431169 is about 29452.1844520912. The cubic root of 867431169 is about 953.6997624621.

The spelling of 867431169 in words is "eight hundred sixty-seven million, four hundred thirty-one thousand, one hundred sixty-nine".