672180279 has 4 divisors (see below), whose sum is σ = 896240376. Its totient is φ = 448120184.

The previous prime is 672180253. The next prime is 672180287. The reversal of 672180279 is 972081276.

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 672180279 - 2⁸ = 672180023 is a prime.

It is a super-3 number, since 3×672180279³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672180279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672180479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112030044 + ... + 112030049.

It is an arithmetic number, because the mean of its divisors is an integer number (224060094).

Almost surely, 2^672180279 is an apocalyptic number.

672180279 is a deficient number, since it is larger than the sum of its proper divisors (224060097).

672180279 is a wasteful number, since it uses less digits than its factorization.

672180279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224060096.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 672180279 is about 25926.4397671566. The cubic root of 672180279 is about 875.9821478921.

The spelling of 672180279 in words is "six hundred seventy-two million, one hundred eighty thousand, two hundred seventy-nine".