206722972 has 6 divisors (see below), whose sum is σ = 361765208. Its totient is φ = 103361484.

The previous prime is 206722951. The next prime is 206722981. The reversal of 206722972 is 279227602.

206722972 is digitally balanced in base 2, 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 as a sum of consecutive naturals, namely, 25840368 + ... + 25840375.

Almost surely, 2^206722972 is an apocalyptic number.

It is an amenable number.

206722972 is a deficient number, since it is larger than the sum of its proper divisors (155042236).

206722972 is a wasteful number, since it uses less digits than its factorization.

206722972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51680747 (or 51680745 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 206722972 is about 14377.8639581824. The cubic root of 206722972 is about 591.2841626180.

The spelling of 206722972 in words is "two hundred six million, seven hundred twenty-two thousand, nine hundred seventy-two".