672484277 has 4 divisors (see below), whose sum is σ = 695673420. Its totient is φ = 649295136.

The previous prime is 672484273. The next prime is 672484279. The reversal of 672484277 is 772484276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 284630641 + 387853636 = 16871^2 + 19694^2 .

It is a cyclic number.

It is not a de Polignac number, because 672484277 - 2² = 672484273 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 (672484273) 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, 11594528 + ... + 11594585.

It is an arithmetic number, because the mean of its divisors is an integer number (173918355).

Almost surely, 2^672484277 is an apocalyptic number.

It is an amenable number.

672484277 is a deficient number, since it is larger than the sum of its proper divisors (23189143).

672484277 is a wasteful number, since it uses less digits than its factorization.

672484277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23189142.

The product of its digits is 1053696, while the sum is 47.

The square root of 672484277 is about 25932.3018068200. The cubic root of 672484277 is about 876.1141842393.

Subtracting 672484277 from its reverse (772484276), we obtain a palindrome (99999999).

The spelling of 672484277 in words is "six hundred seventy-two million, four hundred eighty-four thousand, two hundred seventy-seven".