87923597 has 2 divisors, whose sum is σ = 87923598. Its totient is φ = 87923596.

The previous prime is 87923593. The next prime is 87923599. The reversal of 87923597 is 79532978.

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., 84290761 + 3632836 = 9181^2 + 1906^2 .

It is a cyclic number.

It is not a de Polignac number, because 87923597 - 2² = 87923593 is a prime.

Together with 87923599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87923593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43961798 + 43961799.

It is an arithmetic number, because the mean of its divisors is an integer number (43961799).

Almost surely, 2^87923597 is an apocalyptic number.

It is an amenable number.

87923597 is a deficient number, since it is larger than the sum of its proper divisors (1).

87923597 is an equidigital number, since it uses as much as digits as its factorization.

87923597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 87923597 is about 9376.7583417725. The cubic root of 87923597 is about 444.6672545154.

The spelling of 87923597 in words is "eighty-seven million, nine hundred twenty-three thousand, five hundred ninety-seven".