669667982 has 16 divisors (see below), whose sum is σ = 1041952560. Its totient is φ = 322564032.

The previous prime is 669667969. The next prime is 669667997. The reversal of 669667982 is 289766966.

It is a super-2 number, since 2×669667982² = 896910412231904648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47057 + ... + 59612.

It is an arithmetic number, because the mean of its divisors is an integer number (65122035).

Almost surely, 2^669667982 is an apocalyptic number.

669667982 is a deficient number, since it is larger than the sum of its proper divisors (372284578).

669667982 is a wasteful number, since it uses less digits than its factorization.

669667982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106787.

The product of its digits is 11757312, while the sum is 59.

The square root of 669667982 is about 25877.9439291455. The cubic root of 669667982 is about 874.8894475838.

The spelling of 669667982 in words is "six hundred sixty-nine million, six hundred sixty-seven thousand, nine hundred eighty-two".