672733398 has 32 divisors (see below), whose sum is σ = 1368614016. Its totient is φ = 220408128.

The previous prime is 672733393. The next prime is 672733403. The reversal of 672733398 is 893337276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (672733393) and next prime (672733403).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672733393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131965 + ... + 136967.

It is an arithmetic number, because the mean of its divisors is an integer number (42769188).

Almost surely, 2^672733398 is an apocalyptic number.

672733398 is an abundant number, since it is smaller than the sum of its proper divisors (695880618).

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

672733398 is a wasteful number, since it uses less digits than its factorization.

672733398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388.

The product of its digits is 1143072, while the sum is 48.

The square root of 672733398 is about 25937.1046572280. The cubic root of 672733398 is about 876.2223560353. Note that the first 3 decimals are identical.

The spelling of 672733398 in words is "six hundred seventy-two million, seven hundred thirty-three thousand, three hundred ninety-eight".