672989454 has 24 divisors (see below), whose sum is σ = 1482050232. Its totient is φ = 220651920.

The previous prime is 672989441. The next prime is 672989479. The reversal of 672989454 is 454989276.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 672989454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305364 + ... + 307559.

It is an arithmetic number, because the mean of its divisors is an integer number (61752093).

Almost surely, 2^672989454 is an apocalyptic number.

672989454 is an abundant number, since it is smaller than the sum of its proper divisors (809060778).

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

672989454 is a wasteful number, since it uses less digits than its factorization.

672989454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612992 (or 612989 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 672989454 is about 25942.0402821366. The cubic root of 672989454 is about 876.3335112779. Note that the first 3 decimals are identical.

The spelling of 672989454 in words is "six hundred seventy-two million, nine hundred eighty-nine thousand, four hundred fifty-four".