672971959 has 4 divisors (see below), whose sum is σ = 734151240. Its totient is φ = 611792680.

The previous prime is 672971953. The next prime is 672971969. The reversal of 672971959 is 959179276.

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 672971959 - 2³ = 672971951 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 (672971951) 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, 30589624 + ... + 30589645.

It is an arithmetic number, because the mean of its divisors is an integer number (183537810).

Almost surely, 2^672971959 is an apocalyptic number.

672971959 is a deficient number, since it is larger than the sum of its proper divisors (61179281).

672971959 is a wasteful number, since it uses less digits than its factorization.

672971959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61179280.

The product of its digits is 2143260, while the sum is 55.

The square root of 672971959 is about 25941.7030859579. The cubic root of 672971959 is about 876.3259175048.

The spelling of 672971959 in words is "six hundred seventy-two million, nine hundred seventy-one thousand, nine hundred fifty-nine".