87163057 has 2 divisors, whose sum is σ = 87163058. Its totient is φ = 87163056.

The previous prime is 87163033. The next prime is 87163081. The reversal of 87163057 is 75036178.

It is a balanced prime because it is at equal distance from previous prime (87163033) and next prime (87163081).

It can be written as a sum of positive squares in only one way, i.e., 46662561 + 40500496 = 6831^2 + 6364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87163057 is a prime.

It is not a weakly prime, because it can be changed into another prime (87163457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43581528 + 43581529.

It is an arithmetic number, because the mean of its divisors is an integer number (43581529).

Almost surely, 2^87163057 is an apocalyptic number.

It is an amenable number.

87163057 is a deficient number, since it is larger than the sum of its proper divisors (1).

87163057 is an equidigital number, since it uses as much as digits as its factorization.

87163057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 87163057 is about 9336.1157340727. The cubic root of 87163057 is about 443.3814144371.

The spelling of 87163057 in words is "eighty-seven million, one hundred sixty-three thousand, fifty-seven".