220897995 has 16 divisors (see below), whose sum is σ = 358713600. Its totient is φ = 116053344.

The previous prime is 220897987. The next prime is 220898021. The reversal of 220897995 is 599798022.

220897995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220897995 - 2³ = 220897987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108895 + ... + 110904.

It is an arithmetic number, because the mean of its divisors is an integer number (22419600).

Almost surely, 2^220897995 is an apocalyptic number.

220897995 is a deficient number, since it is larger than the sum of its proper divisors (137815605).

220897995 is a wasteful number, since it uses less digits than its factorization.

220897995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219874.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 220897995 is about 14862.6375519287. The cubic root of 220897995 is about 604.5013262099.

The spelling of 220897995 in words is "two hundred twenty million, eight hundred ninety-seven thousand, nine hundred ninety-five".