387799994 has 16 divisors (see below), whose sum is σ = 614496480. Its totient is φ = 183040560.

The previous prime is 387799981. The next prime is 387799999. The reversal of 387799994 is 499997783.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 387799994.

It is not an unprimeable number, because it can be changed into a prime (387799999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7277 + ... + 28784.

It is an arithmetic number, because the mean of its divisors is an integer number (38406030).

Almost surely, 2^387799994 is an apocalyptic number.

387799994 is a deficient number, since it is larger than the sum of its proper divisors (226696486).

387799994 is a wasteful number, since it uses less digits than its factorization.

387799994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36365.

The product of its digits is 30862944, while the sum is 65.

The square root of 387799994 is about 19692.6380660388. The cubic root of 387799994 is about 729.2379575220.

The spelling of 387799994 in words is "three hundred eighty-seven million, seven hundred ninety-nine thousand, nine hundred ninety-four".