667900563 has 8 divisors (see below), whose sum is σ = 971491776. Its totient is φ = 404788200.

The previous prime is 667900517. The next prime is 667900567. The reversal of 667900563 is 365009766.

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

It is not a de Polignac number, because 667900563 - 2²⁶ = 600791699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667900567) 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, 10119673 + ... + 10119738.

It is an arithmetic number, because the mean of its divisors is an integer number (121436472).

Almost surely, 2^667900563 is an apocalyptic number.

667900563 is a deficient number, since it is larger than the sum of its proper divisors (303591213).

667900563 is a wasteful number, since it uses less digits than its factorization.

667900563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20239425.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 667900563 is about 25843.7722285273. The cubic root of 667900563 is about 874.1190864373.

The spelling of 667900563 in words is "six hundred sixty-seven million, nine hundred thousand, five hundred sixty-three".