87250277 has 2 divisors, whose sum is σ = 87250278. Its totient is φ = 87250276.

The previous prime is 87250271. The next prime is 87250297. The reversal of 87250277 is 77205278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59382436 + 27867841 = 7706^2 + 5279^2 .

It is a cyclic number.

It is not a de Polignac number, because 87250277 - 2⁸ = 87250021 is a prime.

It is a super-2 number, since 2×87250277² = 15225221673153458, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87250277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87250271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43625138 + 43625139.

It is an arithmetic number, because the mean of its divisors is an integer number (43625139).

Almost surely, 2^87250277 is an apocalyptic number.

It is an amenable number.

87250277 is a deficient number, since it is larger than the sum of its proper divisors (1).

87250277 is an equidigital number, since it uses as much as digits as its factorization.

87250277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 87250277 is about 9340.7856735930. The cubic root of 87250277 is about 443.5292554930.

The spelling of 87250277 in words is "eighty-seven million, two hundred fifty thousand, two hundred seventy-seven".