88690220 has 12 divisors (see below), whose sum is σ = 186249504. Its totient is φ = 35476080.

The previous prime is 88690213. The next prime is 88690223. The reversal of 88690220 is 2209688.

It is not an unprimeable number, because it can be changed into a prime (88690223) 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, 2217236 + ... + 2217275.

It is an arithmetic number, because the mean of its divisors is an integer number (15520792).

Almost surely, 2^88690220 is an apocalyptic number.

It is an amenable number.

88690220 is an abundant number, since it is smaller than the sum of its proper divisors (97559284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88690220 is a wasteful number, since it uses less digits than its factorization.

88690220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434520 (or 4434518 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 88690220 is about 9417.5485132809. The cubic root of 88690220 is about 445.9558966222.

The spelling of 88690220 in words is "eighty-eight million, six hundred ninety thousand, two hundred twenty".