88905620 has 12 divisors (see below), whose sum is σ = 186701844. Its totient is φ = 35562240.

The previous prime is 88905601. The next prime is 88905637. The reversal of 88905620 is 2650988.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 69422224 = 4414^2 + 8332^2 .

It is a super-4 number, since 4×88905620⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222621 + ... + 2222660.

It is an arithmetic number, because the mean of its divisors is an integer number (15558487).

Almost surely, 2^88905620 is an apocalyptic number.

It is an amenable number.

88905620 is an abundant number, since it is smaller than the sum of its proper divisors (97796224).

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

88905620 is a wasteful number, since it uses less digits than its factorization.

88905620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445290 (or 4445288 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 88905620 is about 9428.9776752308. The cubic root of 88905620 is about 446.3166325241.

The spelling of 88905620 in words is "eighty-eight million, nine hundred five thousand, six hundred twenty".