672609 has 8 divisors (see below), whose sum is σ = 1024960. Its totient is φ = 384336.

The previous prime is 672593. The next prime is 672629. The reversal of 672609 is 906276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 672609 - 2⁴ = 672593 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (672629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15994 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (128120).

2⁶⁷²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

672609 is a deficient number, since it is larger than the sum of its proper divisors (352351).

672609 is a wasteful number, since it uses less digits than its factorization.

672609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32039.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 672609 is about 820.1274291231. The cubic root of 672609 is about 87.6168344036.

The spelling of 672609 in words is "six hundred seventy-two thousand, six hundred nine".