672723 has 6 divisors (see below), whose sum is σ = 971724. Its totient is φ = 448476.

The previous prime is 672703. The next prime is 672743. The reversal of 672723 is 327276.

672723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (672703) and next prime (672743).

It is a de Polignac number, because none of the positive numbers 2^k-672723 is a prime.

It is a super-3 number, since 3×672723³ = 913334963686791201, which contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (672703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37365 + ... + 37382.

It is an arithmetic number, because the mean of its divisors is an integer number (161954).

2⁶⁷²⁷²³ is an apocalyptic number.

672723 is a deficient number, since it is larger than the sum of its proper divisors (299001).

672723 is a wasteful number, since it uses less digits than its factorization.

672723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74753 (or 74750 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 672723 is about 820.1969275729. The cubic root of 672723 is about 87.6217841614.

Adding to 672723 its reverse (327276), we get a palindrome (999999).

The spelling of 672723 in words is "six hundred seventy-two thousand, seven hundred twenty-three".