213700788 has 96 divisors (see below), whose sum is σ = 642790400. Its totient is φ = 60131808.

The previous prime is 213700783. The next prime is 213700801. The reversal of 213700788 is 887007312.

213700788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213700783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48543 + ... + 52761.

Almost surely, 2^213700788 is an apocalyptic number.

213700788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213700788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321395200).

213700788 is an abundant number, since it is smaller than the sum of its proper divisors (429089612).

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

213700788 is a wasteful number, since it uses less digits than its factorization.

213700788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306 (or 4298 counting only the distinct ones).

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

The square root of 213700788 is about 14618.5084054427. The cubic root of 213700788 is about 597.8635013189.

The spelling of 213700788 in words is "two hundred thirteen million, seven hundred thousand, seven hundred eighty-eight".