674000987 has 4 divisors (see below), whose sum is σ = 735273816. Its totient is φ = 612728160.

The previous prime is 674000983. The next prime is 674001037. The reversal of 674000987 is 789000476.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 674000987 - 2² = 674000983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674000983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30636398 + ... + 30636419.

It is an arithmetic number, because the mean of its divisors is an integer number (183818454).

Almost surely, 2^674000987 is an apocalyptic number.

674000987 is a deficient number, since it is larger than the sum of its proper divisors (61272829).

674000987 is a wasteful number, since it uses less digits than its factorization.

674000987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61272828.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 674000987 is about 25961.5289803971. The cubic root of 674000987 is about 876.7723475336.

The spelling of 674000987 in words is "six hundred seventy-four million, nine hundred eighty-seven", and thus it is an aban number.