672729798 has 32 divisors (see below), whose sum is σ = 1452390912. Its totient is φ = 206503200.

The previous prime is 672729787. The next prime is 672729833. The reversal of 672729798 is 897927276.

It is a super-2 number, since 2×672729798² = 905130762234241608, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23613 + ... + 43623.

It is an arithmetic number, because the mean of its divisors is an integer number (45387216).

Almost surely, 2^672729798 is an apocalyptic number.

672729798 is an abundant number, since it is smaller than the sum of its proper divisors (779661114).

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

672729798 is a wasteful number, since it uses less digits than its factorization.

672729798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20460.

The product of its digits is 5334336, while the sum is 57.

The square root of 672729798 is about 25937.0352584870. The cubic root of 672729798 is about 876.2207930555.

The spelling of 672729798 in words is "six hundred seventy-two million, seven hundred twenty-nine thousand, seven hundred ninety-eight".