28463137 has 2 divisors, whose sum is σ = 28463138. Its totient is φ = 28463136.

The previous prime is 28463131. The next prime is 28463161. The reversal of 28463137 is 73136482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25644096 + 2819041 = 5064^2 + 1679^2 .

It is a cyclic number.

It is not a de Polignac number, because 28463137 - 2³ = 28463129 is a prime.

It is not a weakly prime, because it can be changed into another prime (28463131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14231568 + 14231569.

It is an arithmetic number, because the mean of its divisors is an integer number (14231569).

Almost surely, 2^28463137 is an apocalyptic number.

It is an amenable number.

28463137 is a deficient number, since it is larger than the sum of its proper divisors (1).

28463137 is an equidigital number, since it uses as much as digits as its factorization.

28463137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 28463137 is about 5335.0854726049. The cubic root of 28463137 is about 305.3239843134.

The spelling of 28463137 in words is "twenty-eight million, four hundred sixty-three thousand, one hundred thirty-seven".