667254783 has 32 divisors (see below), whose sum is σ = 983812032. Its totient is φ = 399744000.

The previous prime is 667254751. The next prime is 667254799. The reversal of 667254783 is 387452766.

It is not a de Polignac number, because 667254783 - 2⁵ = 667254751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667254733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238891 + ... + 241667.

It is an arithmetic number, because the mean of its divisors is an integer number (30744126).

Almost surely, 2^667254783 is an apocalyptic number.

667254783 is a deficient number, since it is larger than the sum of its proper divisors (316557249).

667254783 is a wasteful number, since it uses less digits than its factorization.

667254783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955.

The product of its digits is 1693440, while the sum is 48.

The square root of 667254783 is about 25831.2752879141. The cubic root of 667254783 is about 873.8372727045.

The spelling of 667254783 in words is "six hundred sixty-seven million, two hundred fifty-four thousand, seven hundred eighty-three".