28092631 has 24 divisors (see below), whose sum is σ = 34108800. Its totient is φ = 23051952.

The previous prime is 28092613. The next prime is 28092643. The reversal of 28092631 is 13629082.

It is not a de Polignac number, because 28092631 - 2⁵ = 28092599 is a prime.

It is a super-2 number, since 2×28092631² = 1578391833004322, 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 = 28092593 and 28092602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28092601) 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, 141070 + ... + 141268.

It is an arithmetic number, because the mean of its divisors is an integer number (1421200).

Almost surely, 2^28092631 is an apocalyptic number.

28092631 is a deficient number, since it is larger than the sum of its proper divisors (6016169).

28092631 is a wasteful number, since it uses less digits than its factorization.

28092631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 28092631 is about 5300.2482017355. The cubic root of 28092631 is about 303.9933884469.

The spelling of 28092631 in words is "twenty-eight million, ninety-two thousand, six hundred thirty-one".