87612599 has 2 divisors, whose sum is σ = 87612600. Its totient is φ = 87612598.

The previous prime is 87612583. The next prime is 87612619. The reversal of 87612599 is 99521678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87612599 - 2⁴ = 87612583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87612529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43806299 + 43806300.

It is an arithmetic number, because the mean of its divisors is an integer number (43806300).

Almost surely, 2^87612599 is an apocalyptic number.

87612599 is a deficient number, since it is larger than the sum of its proper divisors (1).

87612599 is an equidigital number, since it uses as much as digits as its factorization.

87612599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 87612599 is about 9360.1602016205. The cubic root of 87612599 is about 444.1423518204.

The spelling of 87612599 in words is "eighty-seven million, six hundred twelve thousand, five hundred ninety-nine".