212703900 has 72 divisors (see below), whose sum is σ = 630470064. Its totient is φ = 55334400.

The previous prime is 212703899. The next prime is 212703913. The reversal of 212703900 is 9307212.

212703900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3654 + ... + 20946.

Almost surely, 2^212703900 is an apocalyptic number.

212703900 is a gapful number since it is divisible by the number (20) 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 212703900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315235032).

212703900 is an abundant number, since it is smaller than the sum of its proper divisors (417766164).

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

212703900 is a wasteful number, since it uses less digits than its factorization.

212703900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17351 (or 17344 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 212703900 is about 14584.3717725516. The cubic root of 212703900 is about 596.9323986539.

The spelling of 212703900 in words is "two hundred twelve million, seven hundred three thousand, nine hundred".