387694347 has 16 divisors (see below), whose sum is σ = 520903968. Its totient is φ = 256481280.

The previous prime is 387694337. The next prime is 387694357. The reversal of 387694347 is 743496783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (387694337) and next prime (387694357).

It is not a de Polignac number, because 387694347 - 2⁴ = 387694331 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 387694347.

It is not an unprimeable number, because it can be changed into a prime (387694327) 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, 382213 + ... + 383225.

It is an arithmetic number, because the mean of its divisors is an integer number (32556498).

Almost surely, 2^387694347 is an apocalyptic number.

387694347 is a deficient number, since it is larger than the sum of its proper divisors (133209621).

387694347 is a wasteful number, since it uses less digits than its factorization.

387694347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its digits is 3048192, while the sum is 51.

The square root of 387694347 is about 19689.9554849675. The cubic root of 387694347 is about 729.1717302564.

The spelling of 387694347 in words is "three hundred eighty-seven million, six hundred ninety-four thousand, three hundred forty-seven".