674500981 has 16 divisors (see below), whose sum is σ = 841668480. Its totient is φ = 525127680.

The previous prime is 674500979. The next prime is 674500991. The reversal of 674500981 is 189005476.

It is not a de Polignac number, because 674500981 - 2¹ = 674500979 is a prime.

It is a super-2 number, since 2×674500981² = 909903146739924722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674500961) 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, 105385 + ... + 111601.

It is an arithmetic number, because the mean of its divisors is an integer number (52604280).

Almost surely, 2^674500981 is an apocalyptic number.

It is an amenable number.

674500981 is a deficient number, since it is larger than the sum of its proper divisors (167167499).

674500981 is a wasteful number, since it uses less digits than its factorization.

674500981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 674500981 is about 25971.1567127843. The cubic root of 674500981 is about 876.9890992224.

The spelling of 674500981 in words is "six hundred seventy-four million, five hundred thousand, nine hundred eighty-one".