88766221 has 8 divisors (see below), whose sum is σ = 91491840. Its totient is φ = 86075568.

The previous prime is 88766203. The next prime is 88766261. The reversal of 88766221 is 12266788.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88766221 - 2²¹ = 86669069 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88766261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3541 + ... + 13786.

It is an arithmetic number, because the mean of its divisors is an integer number (11436480).

Almost surely, 2^88766221 is an apocalyptic number.

It is an amenable number.

88766221 is a deficient number, since it is larger than the sum of its proper divisors (2725619).

88766221 is a wasteful number, since it uses less digits than its factorization.

88766221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17483.

The product of its digits is 64512, while the sum is 40.

The square root of 88766221 is about 9421.5827226640. The cubic root of 88766221 is about 446.0832440622.

The spelling of 88766221 in words is "eighty-eight million, seven hundred sixty-six thousand, two hundred twenty-one".