213770088 has 48 divisors (see below), whose sum is σ = 661670880. Its totient is φ = 61077024.

The previous prime is 213770077. The next prime is 213770113. The reversal of 213770088 is 880077312.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211570 + ... + 212577.

It is an arithmetic number, because the mean of its divisors is an integer number (13784810).

Almost surely, 2^213770088 is an apocalyptic number.

213770088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213770088 is an abundant number, since it is smaller than the sum of its proper divisors (447900792).

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

213770088 is a wasteful number, since it uses less digits than its factorization.

213770088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424166 (or 424159 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 213770088 is about 14620.8784961780. The cubic root of 213770088 is about 597.9281204268.

The spelling of 213770088 in words is "two hundred thirteen million, seven hundred seventy thousand, eighty-eight".