672989463 has 6 divisors (see below), whose sum is σ = 972095904. Its totient is φ = 448659636.

The previous prime is 672989441. The next prime is 672989479. The reversal of 672989463 is 364989276.

It is a happy number.

It is not a de Polignac number, because 672989463 - 2²⁶ = 605880599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672989423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37388295 + ... + 37388312.

It is an arithmetic number, because the mean of its divisors is an integer number (162015984).

Almost surely, 2^672989463 is an apocalyptic number.

672989463 is a deficient number, since it is larger than the sum of its proper divisors (299106441).

672989463 is a wasteful number, since it uses less digits than its factorization.

672989463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74776613 (or 74776610 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 672989463 is about 25942.0404556002. The cubic root of 672989463 is about 876.3335151843. Note that the first 3 decimals are identical.

The spelling of 672989463 in words is "six hundred seventy-two million, nine hundred eighty-nine thousand, four hundred sixty-three".