674786487 has 16 divisors (see below), whose sum is σ = 943100928. Its totient is φ = 428675520.

The previous prime is 674786459. The next prime is 674786507. The reversal of 674786487 is 784687476.

It is a happy number.

674786487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 674786487 - 2²⁸ = 406351031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674786447) 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, 58503 + ... + 69080.

It is an arithmetic number, because the mean of its divisors is an integer number (58943808).

Almost surely, 2^674786487 is an apocalyptic number.

674786487 is a deficient number, since it is larger than the sum of its proper divisors (268314441).

674786487 is a wasteful number, since it uses less digits than its factorization.

674786487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127670.

The product of its digits is 12644352, while the sum is 57.

The square root of 674786487 is about 25976.6527289410. The cubic root of 674786487 is about 877.1128204805.

The spelling of 674786487 in words is "six hundred seventy-four million, seven hundred eighty-six thousand, four hundred eighty-seven".