672613 has 4 divisors (see below), whose sum is σ = 682720. Its totient is φ = 662508.

The previous prime is 672593. The next prime is 672629. The reversal of 672613 is 316276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672613 - 2¹³ = 664421 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672643) 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, 4953 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (170680).

2⁶⁷²⁶¹³ is an apocalyptic number.

It is an amenable number.

672613 is a deficient number, since it is larger than the sum of its proper divisors (10107).

672613 is a wasteful number, since it uses less digits than its factorization.

672613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106.

The product of its digits is 1512, while the sum is 25.

The square root of 672613 is about 820.1298677649. The cubic root of 672613 is about 87.6170080888.

Adding to 672613 its reverse (316276), we get a palindrome (988889).

The spelling of 672613 in words is "six hundred seventy-two thousand, six hundred thirteen".