87024689 has 2 divisors, whose sum is σ = 87024690. Its totient is φ = 87024688.

The previous prime is 87024677. The next prime is 87024697. The reversal of 87024689 is 98642078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81144064 + 5880625 = 9008^2 + 2425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87024689 is a prime.

It is not a weakly prime, because it can be changed into another prime (87024659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43512344 + 43512345.

It is an arithmetic number, because the mean of its divisors is an integer number (43512345).

Almost surely, 2^87024689 is an apocalyptic number.

It is an amenable number.

87024689 is a deficient number, since it is larger than the sum of its proper divisors (1).

87024689 is an equidigital number, since it uses as much as digits as its factorization.

87024689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 87024689 is about 9328.7024285267. The cubic root of 87024689 is about 443.1466731992.

The spelling of 87024689 in words is "eighty-seven million, twenty-four thousand, six hundred eighty-nine".