672398 has 4 divisors (see below), whose sum is σ = 1008600. Its totient is φ = 336198.

The previous prime is 672379. The next prime is 672439. The reversal of 672398 is 893276.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168098 + ... + 168101.

It is an arithmetic number, because the mean of its divisors is an integer number (252150).

2⁶⁷²³⁹⁸ is an apocalyptic number.

672398 is a deficient number, since it is larger than the sum of its proper divisors (336202).

672398 is a wasteful number, since it uses less digits than its factorization.

672398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336201.

The product of its digits is 18144, while the sum is 35.

The square root of 672398 is about 819.9987804869. The cubic root of 672398 is about 87.6076715340.

The spelling of 672398 in words is "six hundred seventy-two thousand, three hundred ninety-eight".