674623551 has 16 divisors (see below), whose sum is σ = 1037608704. Its totient is φ = 381895104.

The previous prime is 674623531. The next prime is 674623559. The reversal of 674623551 is 155326476.

It is not a de Polignac number, because 674623551 - 2⁶ = 674623487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674623559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147870 + ... + 152363.

It is an arithmetic number, because the mean of its divisors is an integer number (64850544).

Almost surely, 2^674623551 is an apocalyptic number.

674623551 is a deficient number, since it is larger than the sum of its proper divisors (362985153).

674623551 is a wasteful number, since it uses less digits than its factorization.

674623551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300350.

The product of its digits is 151200, while the sum is 39.

The square root of 674623551 is about 25973.5163387632. The cubic root of 674623551 is about 877.0422180200.

The spelling of 674623551 in words is "six hundred seventy-four million, six hundred twenty-three thousand, five hundred fifty-one".