88607989 has 2 divisors, whose sum is σ = 88607990. Its totient is φ = 88607988.

The previous prime is 88607971. The next prime is 88607999. The reversal of 88607989 is 98970688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48539089 + 40068900 = 6967^2 + 6330^2 .

It is a cyclic number.

It is not a de Polignac number, because 88607989 - 2⁵ = 88607957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88607999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44303994 + 44303995.

It is an arithmetic number, because the mean of its divisors is an integer number (44303995).

Almost surely, 2^88607989 is an apocalyptic number.

It is an amenable number.

88607989 is a deficient number, since it is larger than the sum of its proper divisors (1).

88607989 is an equidigital number, since it uses as much as digits as its factorization.

88607989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 88607989 is about 9413.1816619037. The cubic root of 88607989 is about 445.8180282127.

The spelling of 88607989 in words is "eighty-eight million, six hundred seven thousand, nine hundred eighty-nine".