674637523 has 4 divisors (see below), whose sum is σ = 771014320. Its totient is φ = 578260728.

The previous prime is 674637517. The next prime is 674637553. The reversal of 674637523 is 325736476.

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 674637523 - 2¹⁷ = 674506451 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 674637523.

It is not an unprimeable number, because it can be changed into a prime (674637553) 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, 48188388 + ... + 48188401.

It is an arithmetic number, because the mean of its divisors is an integer number (192753580).

Almost surely, 2^674637523 is an apocalyptic number.

674637523 is a deficient number, since it is larger than the sum of its proper divisors (96376797).

674637523 is an equidigital number, since it uses as much as digits as its factorization.

674637523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96376796.

The product of its digits is 635040, while the sum is 43.

The square root of 674637523 is about 25973.7853036480. The cubic root of 674637523 is about 877.0482727297.

The spelling of 674637523 in words is "six hundred seventy-four million, six hundred thirty-seven thousand, five hundred twenty-three".