26328631 has 12 divisors (see below), whose sum is σ = 32429808. Its totient is φ = 21239232.

The previous prime is 26328611. The next prime is 26328671. The reversal of 26328631 is 13682362.

It is not a de Polignac number, because 26328631 - 2⁷ = 26328503 is a prime.

It is a super-2 number, since 2×26328631² = 1386393620668322, 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 = 26328593 and 26328602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26328611) 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, 14971 + ... + 16636.

It is an arithmetic number, because the mean of its divisors is an integer number (2702484).

Almost surely, 2^26328631 is an apocalyptic number.

26328631 is a deficient number, since it is larger than the sum of its proper divisors (6101177).

26328631 is a wasteful number, since it uses less digits than its factorization.

26328631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31638 (or 31631 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 26328631 is about 5131.1432449309. The cubic root of 26328631 is about 297.4925488330.

The spelling of 26328631 in words is "twenty-six million, three hundred twenty-eight thousand, six hundred thirty-one".