674481537 has 24 divisors (see below), whose sum is σ = 996602880. Its totient is φ = 439369920.

The previous prime is 674481523. The next prime is 674481557. The reversal of 674481537 is 735184476.

674481537 is a `hidden beast` number, since 6 + 74 + 48 + 1 + 537 = 666.

It is not a de Polignac number, because 674481537 - 2⁸ = 674481281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674481492 and 674481501.

It is not an unprimeable number, because it can be changed into a prime (674481557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418389 + ... + 419997.

It is an arithmetic number, because the mean of its divisors is an integer number (41525120).

Almost surely, 2^674481537 is an apocalyptic number.

It is an amenable number.

674481537 is a deficient number, since it is larger than the sum of its proper divisors (322121343).

674481537 is a wasteful number, since it uses less digits than its factorization.

674481537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653 (or 2650 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 674481537 is about 25970.7823717346. The cubic root of 674481537 is about 876.9806720837.

The spelling of 674481537 in words is "six hundred seventy-four million, four hundred eighty-one thousand, five hundred thirty-seven".