672123072 has 42 divisors (see below), whose sum is σ = 1779276604. Its totient is φ = 223921280.

The previous prime is 672123041. The next prime is 672123083. The reversal of 672123072 is 270321276.

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

It is an unprimeable number.

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, 358297 + ... + 360167.

Almost surely, 2^672123072 is an apocalyptic number.

It is an amenable number.

672123072 is an abundant number, since it is smaller than the sum of its proper divisors (1107153532).

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

672123072 is an frugal number, since it uses more digits than its factorization.

672123072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 672123072 is about 25925.3364876910. The cubic root of 672123072 is about 875.9572965568.

The spelling of 672123072 in words is "six hundred seventy-two million, one hundred twenty-three thousand, seventy-two".