669970254 has 8 divisors (see below), whose sum is σ = 1339940520. Its totient is φ = 223323416.

The previous prime is 669970247. The next prime is 669970277. The reversal of 669970254 is 452079966.

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

669970254 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55830849 + ... + 55830860.

It is an arithmetic number, because the mean of its divisors is an integer number (167492565).

Almost surely, 2^669970254 is an apocalyptic number.

669970254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669970254 is a wasteful number, since it uses less digits than its factorization.

669970254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111661714.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 669970254 is about 25883.7836105929. The cubic root of 669970254 is about 875.0210624590.

The spelling of 669970254 in words is "six hundred sixty-nine million, nine hundred seventy thousand, two hundred fifty-four".