212609994 has 16 divisors (see below), whose sum is σ = 425644032. Its totient is φ = 70799328.

The previous prime is 212609993. The next prime is 212610001. The reversal of 212609994 is 499906212.

212609994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212609993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 23349.

It is an arithmetic number, because the mean of its divisors is an integer number (26602752).

Almost surely, 2^212609994 is an apocalyptic number.

212609994 is an abundant number, since it is smaller than the sum of its proper divisors (213034038).

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

212609994 is a wasteful number, since it uses less digits than its factorization.

212609994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35341.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 212609994 is about 14581.1520121011. The cubic root of 212609994 is about 596.8445397648.

The spelling of 212609994 in words is "two hundred twelve million, six hundred nine thousand, nine hundred ninety-four".