87262823 has 2 divisors, whose sum is σ = 87262824. Its totient is φ = 87262822.

The previous prime is 87262817. The next prime is 87262871. The reversal of 87262823 is 32826278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87262823 - 2²⁴ = 70485607 is a prime.

It is a super-2 number, since 2×87262823² = 15229600555858658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87262423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43631411 + 43631412.

It is an arithmetic number, because the mean of its divisors is an integer number (43631412).

Almost surely, 2^87262823 is an apocalyptic number.

87262823 is a deficient number, since it is larger than the sum of its proper divisors (1).

87262823 is an equidigital number, since it uses as much as digits as its factorization.

87262823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 38.

The square root of 87262823 is about 9341.4572203698. The cubic root of 87262823 is about 443.5505133103.

The spelling of 87262823 in words is "eighty-seven million, two hundred sixty-two thousand, eight hundred twenty-three".