88866139 has 2 divisors, whose sum is σ = 88866140. Its totient is φ = 88866138.

The previous prime is 88866101. The next prime is 88866241. The reversal of 88866139 is 93166888.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88866139 - 2²³ = 80477531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88866092 and 88866101.

It is not a weakly prime, because it can be changed into another prime (88866539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44433069 + 44433070.

It is an arithmetic number, because the mean of its divisors is an integer number (44433070).

Almost surely, 2^88866139 is an apocalyptic number.

88866139 is a deficient number, since it is larger than the sum of its proper divisors (1).

88866139 is an equidigital number, since it uses as much as digits as its factorization.

88866139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 49.

The square root of 88866139 is about 9426.8838435615. The cubic root of 88866139 is about 446.2505563264.

The spelling of 88866139 in words is "eighty-eight million, eight hundred sixty-six thousand, one hundred thirty-nine".