674577216 has 168 divisors, whose sum is σ = 2075505120. Its totient is φ = 208825344.

The previous prime is 674577181. The next prime is 674577227. The reversal of 674577216 is 612775476.

674577216 is a `hidden beast` number, since 6 + 74 + 577 + 2 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579451 + ... + 580613.

Almost surely, 2^674577216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674577216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037752560).

674577216 is an abundant number, since it is smaller than the sum of its proper divisors (1400927904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674577216 is a wasteful number, since it uses less digits than its factorization.

674577216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1240 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 674577216 is about 25972.6243571958. The cubic root of 674577216 is about 877.0221383368.

The spelling of 674577216 in words is "six hundred seventy-four million, five hundred seventy-seven thousand, two hundred sixteen".