87955279 has 2 divisors, whose sum is σ = 87955280. Its totient is φ = 87955278.

The previous prime is 87955271. The next prime is 87955303. The reversal of 87955279 is 97255978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87955279 - 2³ = 87955271 is a prime.

It is a super-2 number, since 2×87955279² = 15472262207935682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87955271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43977639 + 43977640.

It is an arithmetic number, because the mean of its divisors is an integer number (43977640).

Almost surely, 2^87955279 is an apocalyptic number.

87955279 is a deficient number, since it is larger than the sum of its proper divisors (1).

87955279 is an equidigital number, since it uses as much as digits as its factorization.

87955279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 52.

The square root of 87955279 is about 9378.4475794238. The cubic root of 87955279 is about 444.7206579120.

The spelling of 87955279 in words is "eighty-seven million, nine hundred fifty-five thousand, two hundred seventy-nine".