672732671 has 8 divisors (see below), whose sum is σ = 725366880. Its totient is φ = 620224992.

The previous prime is 672732661. The next prime is 672732673. The reversal of 672732671 is 176237276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672732671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672732673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20435 + ... + 41988.

It is an arithmetic number, because the mean of its divisors is an integer number (90670860).

Almost surely, 2^672732671 is an apocalyptic number.

672732671 is a deficient number, since it is larger than the sum of its proper divisors (52634209).

672732671 is a wasteful number, since it uses less digits than its factorization.

672732671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63265.

The product of its digits is 148176, while the sum is 41.

The square root of 672732671 is about 25937.0906425528. The cubic root of 672732671 is about 876.2220404007. Note that the first 3 decimals are identical.

The spelling of 672732671 in words is "six hundred seventy-two million, seven hundred thirty-two thousand, six hundred seventy-one".