387974785 has 32 divisors (see below), whose sum is σ = 528135552. Its totient is φ = 271111680.

The previous prime is 387974753. The next prime is 387974791. The reversal of 387974785 is 587479783.

It is not a de Polignac number, because 387974785 - 2⁵ = 387974753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167757 + ... + 170053.

It is an arithmetic number, because the mean of its divisors is an integer number (16504236).

Almost surely, 2^387974785 is an apocalyptic number.

It is an amenable number.

387974785 is a deficient number, since it is larger than the sum of its proper divisors (140160767).

387974785 is a wasteful number, since it uses less digits than its factorization.

387974785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433.

The product of its digits is 11854080, while the sum is 58.

The square root of 387974785 is about 19697.0755443543. The cubic root of 387974785 is about 729.3475028960.

The spelling of 387974785 in words is "three hundred eighty-seven million, nine hundred seventy-four thousand, seven hundred eighty-five".