672555 has 16 divisors (see below), whose sum is σ = 1159200. Its totient is φ = 331008.

The previous prime is 672521. The next prime is 672557. The reversal of 672555 is 555276.

It is not a de Polignac number, because 672555 - 2⁹ = 672043 is a prime.

672555 is a lucky number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 672555.

It is not an unprimeable number, because it can be changed into a prime (672557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1530 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (72450).

2⁶⁷²⁵⁵⁵ is an apocalyptic number.

672555 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

672555 is a deficient number, since it is larger than the sum of its proper divisors (486645).

672555 is a wasteful number, since it uses less digits than its factorization.

672555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470.

The product of its digits is 10500, while the sum is 30.

The square root of 672555 is about 820.0945067491. The cubic root of 672555 is about 87.6144895863.

The spelling of 672555 in words is "six hundred seventy-two thousand, five hundred fifty-five".