88650081 has 12 divisors (see below), whose sum is σ = 137900308. Its totient is φ = 54553824.

The previous prime is 88650061. The next prime is 88650091. The reversal of 88650081 is 18005688.

88650081 = 1834² + 1835² + ... + 1859².

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 85100625 = 1884^2 + 9225^2 .

It is not a de Polignac number, because 88650081 - 2⁹ = 88649569 is a prime.

It is a super-2 number, since 2×88650081² = 15717673722613122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88650011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378730 + ... + 378963.

Almost surely, 2^88650081 is an apocalyptic number.

It is an amenable number.

88650081 is a deficient number, since it is larger than the sum of its proper divisors (49250227).

88650081 is a wasteful number, since it uses less digits than its factorization.

88650081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757712 (or 757709 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 88650081 is about 9415.4171973418. The cubic root of 88650081 is about 445.8886102675. Note that the first 3 decimals are identical.

The spelling of 88650081 in words is "eighty-eight million, six hundred fifty thousand, eighty-one".