674764551 has 12 divisors (see below), whose sum is σ = 978455712. Its totient is φ = 448091136.

The previous prime is 674764513. The next prime is 674764579. The reversal of 674764551 is 155467476.

It is not a de Polignac number, because 674764551 - 2⁶ = 674764487 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 674764497 and 674764506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674764591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143551 + ... + 148176.

It is an arithmetic number, because the mean of its divisors is an integer number (81537976).

Almost surely, 2^674764551 is an apocalyptic number.

674764551 is a deficient number, since it is larger than the sum of its proper divisors (303691161).

674764551 is a wasteful number, since it uses less digits than its factorization.

674764551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291990 (or 291987 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 674764551 is about 25976.2305002092. The cubic root of 674764551 is about 877.1033159652.

It can be divided in two parts, 67476 and 4551, that added together give a palindrome (72027).

The spelling of 674764551 in words is "six hundred seventy-four million, seven hundred sixty-four thousand, five hundred fifty-one".