672874871 has 4 divisors (see below), whose sum is σ = 694580544. Its totient is φ = 651169200.

The previous prime is 672874861. The next prime is 672874877. The reversal of 672874871 is 178478276.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672874871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672874877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10852790 + ... + 10852851.

It is an arithmetic number, because the mean of its divisors is an integer number (173645136).

Almost surely, 2^672874871 is an apocalyptic number.

672874871 is a deficient number, since it is larger than the sum of its proper divisors (21705673).

672874871 is a wasteful number, since it uses less digits than its factorization.

672874871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21705672.

The product of its digits is 1053696, while the sum is 50.

The square root of 672874871 is about 25939.8317457920. The cubic root of 672874871 is about 876.2837736872.

The spelling of 672874871 in words is "six hundred seventy-two million, eight hundred seventy-four thousand, eight hundred seventy-one".