672959279 has 4 divisors (see below), whose sum is σ = 673118784. Its totient is φ = 672799776.

The previous prime is 672959249. The next prime is 672959291. The reversal of 672959279 is 972959276.

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 672959279 - 2¹⁶ = 672893743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672959249) 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, 73247 + ... + 81920.

It is an arithmetic number, because the mean of its divisors is an integer number (168279696).

Almost surely, 2^672959279 is an apocalyptic number.

672959279 is a deficient number, since it is larger than the sum of its proper divisors (159505).

672959279 is a wasteful number, since it uses less digits than its factorization.

672959279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159504.

The product of its digits is 4286520, while the sum is 56.

The square root of 672959279 is about 25941.4586906750. The cubic root of 672959279 is about 876.3204136190.

The spelling of 672959279 in words is "six hundred seventy-two million, nine hundred fifty-nine thousand, two hundred seventy-nine".