672453478 has 4 divisors (see below), whose sum is σ = 1008680220. Its totient is φ = 336226738.

The previous prime is 672453407. The next prime is 672453499. The reversal of 672453478 is 874354276.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168113368 + ... + 168113371.

It is an arithmetic number, because the mean of its divisors is an integer number (252170055).

Almost surely, 2^672453478 is an apocalyptic number.

672453478 is a deficient number, since it is larger than the sum of its proper divisors (336226742).

672453478 is a wasteful number, since it uses less digits than its factorization.

672453478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336226741.

The product of its digits is 1128960, while the sum is 46.

The square root of 672453478 is about 25931.7079653462. The cubic root of 672453478 is about 876.1008090306.

The spelling of 672453478 in words is "six hundred seventy-two million, four hundred fifty-three thousand, four hundred seventy-eight".