87039077 has 2 divisors, whose sum is σ = 87039078. Its totient is φ = 87039076.

The previous prime is 87039067. The next prime is 87039083. The reversal of 87039077 is 77093078.

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., 87030241 + 8836 = 9329^2 + 94^2 .

It is a cyclic number.

It is not a de Polignac number, because 87039077 - 2¹⁴ = 87022693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87039037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43519538 + 43519539.

It is an arithmetic number, because the mean of its divisors is an integer number (43519539).

Almost surely, 2^87039077 is an apocalyptic number.

It is an amenable number.

87039077 is a deficient number, since it is larger than the sum of its proper divisors (1).

87039077 is an equidigital number, since it uses as much as digits as its factorization.

87039077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 87039077 is about 9329.4735649982. The cubic root of 87039077 is about 443.1710940199.

The spelling of 87039077 in words is "eighty-seven million, thirty-nine thousand, seventy-seven".