87992953 has 2 divisors, whose sum is σ = 87992954. Its totient is φ = 87992952.

The previous prime is 87992899. The next prime is 87993001. The reversal of 87992953 is 35929978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87665769 + 327184 = 9363^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 87992953 - 2⁹ = 87992441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87992953.

It is not a weakly prime, because it can be changed into another prime (87992053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43996476 + 43996477.

It is an arithmetic number, because the mean of its divisors is an integer number (43996477).

Almost surely, 2^87992953 is an apocalyptic number.

It is an amenable number.

87992953 is a deficient number, since it is larger than the sum of its proper divisors (1).

87992953 is an equidigital number, since it uses as much as digits as its factorization.

87992953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The square root of 87992953 is about 9380.4559057649. The cubic root of 87992953 is about 444.7841447759.

The spelling of 87992953 in words is "eighty-seven million, nine hundred ninety-two thousand, nine hundred fifty-three".