87930253 has 2 divisors, whose sum is σ = 87930254. Its totient is φ = 87930252.

The previous prime is 87930247. The next prime is 87930257. The reversal of 87930253 is 35203978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83942244 + 3988009 = 9162^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 87930253 - 2¹⁷ = 87799181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87930257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43965126 + 43965127.

It is an arithmetic number, because the mean of its divisors is an integer number (43965127).

Almost surely, 2^87930253 is an apocalyptic number.

It is an amenable number.

87930253 is a deficient number, since it is larger than the sum of its proper divisors (1).

87930253 is an equidigital number, since it uses as much as digits as its factorization.

87930253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 87930253 is about 9377.1132551548. The cubic root of 87930253 is about 444.6784749790.

The spelling of 87930253 in words is "eighty-seven million, nine hundred thirty thousand, two hundred fifty-three".