672651869 has 8 divisors (see below), whose sum is σ = 712514880. Its totient is φ = 632821696.

The previous prime is 672651829. The next prime is 672651871. The reversal of 672651869 is 968156276.

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

It is a cyclic number.

It is not a de Polignac number, because 672651869 - 2²⁰ = 671603293 is a prime.

It is a super-2 number, since 2×672651869² = 904921073738386322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672651829) 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, 43232 + ... + 56694.

It is an arithmetic number, because the mean of its divisors is an integer number (89064360).

Almost surely, 2^672651869 is an apocalyptic number.

It is an amenable number.

672651869 is a deficient number, since it is larger than the sum of its proper divisors (39863011).

672651869 is a wasteful number, since it uses less digits than its factorization.

672651869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16419.

The product of its digits is 1088640, while the sum is 50.

The square root of 672651869 is about 25935.5329422782. The cubic root of 672651869 is about 876.1869579521.

The spelling of 672651869 in words is "six hundred seventy-two million, six hundred fifty-one thousand, eight hundred sixty-nine".