87167077 has 2 divisors, whose sum is σ = 87167078. Its totient is φ = 87167076.

The previous prime is 87167051. The next prime is 87167083. The reversal of 87167077 is 77076178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85544001 + 1623076 = 9249^2 + 1274^2 .

It is a cyclic number.

It is not a de Polignac number, because 87167077 - 2⁷ = 87166949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87167027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43583538 + 43583539.

It is an arithmetic number, because the mean of its divisors is an integer number (43583539).

Almost surely, 2^87167077 is an apocalyptic number.

It is an amenable number.

87167077 is a deficient number, since it is larger than the sum of its proper divisors (1).

87167077 is an equidigital number, since it uses as much as digits as its factorization.

87167077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115248, while the sum is 43.

The square root of 87167077 is about 9336.3310245513. The cubic root of 87167077 is about 443.3882306501.

The spelling of 87167077 in words is "eighty-seven million, one hundred sixty-seven thousand, seventy-seven".