28833631 has 2 divisors, whose sum is σ = 28833632. Its totient is φ = 28833630.

The previous prime is 28833599. The next prime is 28833647. The reversal of 28833631 is 13633882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28833631 - 2⁵ = 28833599 is a prime.

It is a super-2 number, since 2×28833631² = 1662756553288322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28833031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14416815 + 14416816.

It is an arithmetic number, because the mean of its divisors is an integer number (14416816).

Almost surely, 2^28833631 is an apocalyptic number.

28833631 is a deficient number, since it is larger than the sum of its proper divisors (1).

28833631 is an equidigital number, since it uses as much as digits as its factorization.

28833631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 28833631 is about 5369.6956152095. The cubic root of 28833631 is about 306.6430402140.

The spelling of 28833631 in words is "twenty-eight million, eight hundred thirty-three thousand, six hundred thirty-one".