672312403 has 4 divisors (see below), whose sum is σ = 768357040. Its totient is φ = 576267768.

The previous prime is 672312401. The next prime is 672312409. The reversal of 672312403 is 304213276.

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

It is a cyclic number.

It is not a de Polignac number, because 672312403 - 2¹ = 672312401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672312401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48022308 + ... + 48022321.

It is an arithmetic number, because the mean of its divisors is an integer number (192089260).

Almost surely, 2^672312403 is an apocalyptic number.

672312403 is a deficient number, since it is larger than the sum of its proper divisors (96044637).

672312403 is an equidigital number, since it uses as much as digits as its factorization.

672312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96044636.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 672312403 is about 25928.9876971701. The cubic root of 672312403 is about 876.0395385885.

Adding to 672312403 its reverse (304213276), we get a palindrome (976525679).

The spelling of 672312403 in words is "six hundred seventy-two million, three hundred twelve thousand, four hundred three".