16426831 has 2 divisors, whose sum is σ = 16426832. Its totient is φ = 16426830.

The previous prime is 16426799. The next prime is 16426841. The reversal of 16426831 is 13862461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16426831 - 2⁵ = 16426799 is a prime.

It is a super-2 number, since 2×16426831² = 539681553405122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16426793 and 16426802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16426841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213415 + 8213416.

It is an arithmetic number, because the mean of its divisors is an integer number (8213416).

Almost surely, 2^16426831 is an apocalyptic number.

16426831 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426831 is an equidigital number, since it uses as much as digits as its factorization.

16426831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 16426831 is about 4053.0027140381. The cubic root of 16426831 is about 254.2052972666.

The spelling of 16426831 in words is "sixteen million, four hundred twenty-six thousand, eight hundred thirty-one".