88607581 has 2 divisors, whose sum is σ = 88607582. Its totient is φ = 88607580.

The previous prime is 88607537. The next prime is 88607611. The reversal of 88607581 is 18570688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79816356 + 8791225 = 8934^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 88607581 - 2⁹ = 88607069 is a prime.

It is a super-2 number, since 2×88607581² = 15702606821343122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88607521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44303790 + 44303791.

It is an arithmetic number, because the mean of its divisors is an integer number (44303791).

Almost surely, 2^88607581 is an apocalyptic number.

It is an amenable number.

88607581 is a deficient number, since it is larger than the sum of its proper divisors (1).

88607581 is an equidigital number, since it uses as much as digits as its factorization.

88607581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 88607581 is about 9413.1599901415. The cubic root of 88607581 is about 445.8173439477.

The spelling of 88607581 in words is "eighty-eight million, six hundred seven thousand, five hundred eighty-one".