674986999 has 2 divisors, whose sum is σ = 674987000. Its totient is φ = 674986998.

The previous prime is 674986987. The next prime is 674987051. The reversal of 674986999 is 999689476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674986999 - 2¹¹ = 674984951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674986699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337493499 + 337493500.

It is an arithmetic number, because the mean of its divisors is an integer number (337493500).

Almost surely, 2^674986999 is an apocalyptic number.

674986999 is a deficient number, since it is larger than the sum of its proper divisors (1).

674986999 is an equidigital number, since it uses as much as digits as its factorization.

674986999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52907904, while the sum is 67.

The square root of 674986999 is about 25980.5119079667. The cubic root of 674986999 is about 877.1996895529.

The spelling of 674986999 in words is "six hundred seventy-four million, nine hundred eighty-six thousand, nine hundred ninety-nine".