672844899 has 8 divisors (see below), whose sum is σ = 901775632. Its totient is φ = 446238720.

The previous prime is 672844883. The next prime is 672844927. The reversal of 672844899 is 998448276.

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

It is not a de Polignac number, because 672844899 - 2⁴ = 672844883 is a prime.

It is a super-2 number, since 2×672844899² = 905440516220640402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672844859) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 580462 + ... + 581619.

It is an arithmetic number, because the mean of its divisors is an integer number (112721954).

Almost surely, 2^672844899 is an apocalyptic number.

672844899 is a deficient number, since it is larger than the sum of its proper divisors (228930733).

672844899 is a wasteful number, since it uses less digits than its factorization.

672844899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162277.

The product of its digits is 6967296, while the sum is 57.

The square root of 672844899 is about 25939.2540178009. The cubic root of 672844899 is about 876.2707626662.

The spelling of 672844899 in words is "six hundred seventy-two million, eight hundred forty-four thousand, eight hundred ninety-nine".