28462631 has 2 divisors, whose sum is σ = 28462632. Its totient is φ = 28462630.

The previous prime is 28462591. The next prime is 28462669. The reversal of 28462631 is 13626482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28462631 - 2¹⁴ = 28446247 is a prime.

It is a super-2 number, since 2×28462631² = 1620242726884322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_1768415 and since 28462631 and 1768415 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28462691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14231315 + 14231316.

It is an arithmetic number, because the mean of its divisors is an integer number (14231316).

Almost surely, 2^28462631 is an apocalyptic number.

28462631 is a deficient number, since it is larger than the sum of its proper divisors (1).

28462631 is an equidigital number, since it uses as much as digits as its factorization.

28462631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 28462631 is about 5335.0380504735. The cubic root of 28462631 is about 305.3221750158.

The spelling of 28462631 in words is "twenty-eight million, four hundred sixty-two thousand, six hundred thirty-one".