672981523 has 8 divisors (see below), whose sum is σ = 686658816. Its totient is φ = 659421000.

The previous prime is 672981521. The next prime is 672981527. The reversal of 672981523 is 325189276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672981523 - 2¹ = 672981521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 672981523.

It is not an unprimeable number, because it can be changed into a prime (672981521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17503 + ... + 40648.

It is an arithmetic number, because the mean of its divisors is an integer number (85832352).

Almost surely, 2^672981523 is an apocalyptic number.

672981523 is a deficient number, since it is larger than the sum of its proper divisors (13677293).

672981523 is a wasteful number, since it uses less digits than its factorization.

672981523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58385.

The product of its digits is 181440, while the sum is 43.

The square root of 672981523 is about 25941.8874216970. The cubic root of 672981523 is about 876.3300688126.

The spelling of 672981523 in words is "six hundred seventy-two million, nine hundred eighty-one thousand, five hundred twenty-three".