88866861 has 4 divisors (see below), whose sum is σ = 118489152. Its totient is φ = 59244572.

The previous prime is 88866847. The next prime is 88866881. The reversal of 88866861 is 16866888.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88866861 - 2⁶ = 88866797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88866821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14811141 + ... + 14811146.

It is an arithmetic number, because the mean of its divisors is an integer number (29622288).

Almost surely, 2^88866861 is an apocalyptic number.

It is an amenable number.

88866861 is a deficient number, since it is larger than the sum of its proper divisors (29622291).

88866861 is a wasteful number, since it uses less digits than its factorization.

88866861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29622290.

The product of its digits is 884736, while the sum is 51.

The square root of 88866861 is about 9426.9221382167. The cubic root of 88866861 is about 446.2517648558.

The spelling of 88866861 in words is "eighty-eight million, eight hundred sixty-six thousand, eight hundred sixty-one".