674709545 has 16 divisors (see below), whose sum is σ = 824886720. Its totient is φ = 529644864.

The previous prime is 674709527. The next prime is 674709547. The reversal of 674709545 is 545907476.

It is a cyclic number.

It is not a de Polignac number, because 674709545 - 2¹⁸ = 674447401 is a prime.

It is a super-2 number, since 2×674709545² = 910465940228214050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 674709545.

It is not an unprimeable number, because it can be changed into a prime (674709547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187907 + ... + 191463.

It is an arithmetic number, because the mean of its divisors is an integer number (51555420).

Almost surely, 2^674709545 is an apocalyptic number.

It is an amenable number.

674709545 is a deficient number, since it is larger than the sum of its proper divisors (150177175).

674709545 is a wasteful number, since it uses less digits than its factorization.

674709545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 674709545 is about 25975.1717029936. The cubic root of 674709545 is about 877.0794818461.

The spelling of 674709545 in words is "six hundred seventy-four million, seven hundred nine thousand, five hundred forty-five".