16700431 has 12 divisors (see below), whose sum is σ = 18741240. Its totient is φ = 14758560.

The previous prime is 16700423. The next prime is 16700441. The reversal of 16700431 is 13400761.

It is not a de Polignac number, because 16700431 - 2³ = 16700423 is a prime.

It is a super-2 number, since 2×16700431² = 557808791171522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16700401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14505 + ... + 15613.

It is an arithmetic number, because the mean of its divisors is an integer number (1561770).

Almost surely, 2^16700431 is an apocalyptic number.

16700431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16700431 is a deficient number, since it is larger than the sum of its proper divisors (2040809).

16700431 is a wasteful number, since it uses less digits than its factorization.

16700431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16700431 is about 4086.6160817968. The cubic root of 16700431 is about 255.6088539607.

The spelling of 16700431 in words is "sixteen million, seven hundred thousand, four hundred thirty-one".