387139713 has 8 divisors (see below), whose sum is σ = 517092576. Its totient is φ = 257640000.

The previous prime is 387139699. The next prime is 387139721. The reversal of 387139713 is 317931783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387139713 - 2⁵ = 387139681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387139813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111288 + ... + 114713.

It is an arithmetic number, because the mean of its divisors is an integer number (64636572).

Almost surely, 2^387139713 is an apocalyptic number.

It is an amenable number.

387139713 is a deficient number, since it is larger than the sum of its proper divisors (129952863).

387139713 is a wasteful number, since it uses less digits than its factorization.

387139713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226575.

The product of its digits is 95256, while the sum is 42.

The square root of 387139713 is about 19675.8662579313. The cubic root of 387139713 is about 728.8238475789.

The spelling of 387139713 in words is "three hundred eighty-seven million, one hundred thirty-nine thousand, seven hundred thirteen".