87959537 has 2 divisors, whose sum is σ = 87959538. Its totient is φ = 87959536.

The previous prime is 87959533. The next prime is 87959551. The reversal of 87959537 is 73595978.

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., 87030241 + 929296 = 9329^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 87959537 - 2² = 87959533 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87959533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43979768 + 43979769.

It is an arithmetic number, because the mean of its divisors is an integer number (43979769).

Almost surely, 2^87959537 is an apocalyptic number.

It is an amenable number.

87959537 is a deficient number, since it is larger than the sum of its proper divisors (1).

87959537 is an equidigital number, since it uses as much as digits as its factorization.

87959537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 53.

The square root of 87959537 is about 9378.6745865287. The cubic root of 87959537 is about 444.7278342484.

The spelling of 87959537 in words is "eighty-seven million, nine hundred fifty-nine thousand, five hundred thirty-seven".