87599773 has 2 divisors, whose sum is σ = 87599774. Its totient is φ = 87599772.

The previous prime is 87599767. The next prime is 87599779. The reversal of 87599773 is 37799578.

It is a balanced prime because it is at equal distance from previous prime (87599767) and next prime (87599779).

It can be written as a sum of positive squares in only one way, i.e., 69255684 + 18344089 = 8322^2 + 4283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87599773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87599779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43799886 + 43799887.

It is an arithmetic number, because the mean of its divisors is an integer number (43799887).

Almost surely, 2^87599773 is an apocalyptic number.

It is an amenable number.

87599773 is a deficient number, since it is larger than the sum of its proper divisors (1).

87599773 is an equidigital number, since it uses as much as digits as its factorization.

87599773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 55.

The square root of 87599773 is about 9359.4750386974. The cubic root of 87599773 is about 444.1206774346.

The spelling of 87599773 in words is "eighty-seven million, five hundred ninety-nine thousand, seven hundred seventy-three".