87505933 has 2 divisors, whose sum is σ = 87505934. Its totient is φ = 87505932.

The previous prime is 87505889. The next prime is 87505937. The reversal of 87505933 is 33950578.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59182249 + 28323684 = 7693^2 + 5322^2 .

It is a cyclic number.

It is not a de Polignac number, because 87505933 - 2⁹ = 87505421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87505937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43752966 + 43752967.

It is an arithmetic number, because the mean of its divisors is an integer number (43752967).

Almost surely, 2^87505933 is an apocalyptic number.

It is an amenable number.

87505933 is a deficient number, since it is larger than the sum of its proper divisors (1).

87505933 is an equidigital number, since it uses as much as digits as its factorization.

87505933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 87505933 is about 9354.4605937488. The cubic root of 87505933 is about 443.9620348054.

The spelling of 87505933 in words is "eighty-seven million, five hundred five thousand, nine hundred thirty-three".