220769907 has 8 divisors (see below), whose sum is σ = 294644160. Its totient is φ = 147037800.

The previous prime is 220769897. The next prime is 220769993. The reversal of 220769907 is 709967022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220769907 - 2⁸ = 220769651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220769807) 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, 31857 + ... + 38162.

It is an arithmetic number, because the mean of its divisors is an integer number (36830520).

Almost surely, 2^220769907 is an apocalyptic number.

220769907 is a deficient number, since it is larger than the sum of its proper divisors (73874253).

220769907 is a wasteful number, since it uses less digits than its factorization.

220769907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71073.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 220769907 is about 14858.3278668900. The cubic root of 220769907 is about 604.3844633164.

The spelling of 220769907 in words is "two hundred twenty million, seven hundred sixty-nine thousand, nine hundred seven".