380139679 has 2 divisors, whose sum is σ = 380139680. Its totient is φ = 380139678.

The previous prime is 380139673. The next prime is 380139719. The reversal of 380139679 is 976931083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380139679 - 2¹¹ = 380137631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380139673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190069839 + 190069840.

It is an arithmetic number, because the mean of its divisors is an integer number (190069840).

Almost surely, 2^380139679 is an apocalyptic number.

380139679 is a deficient number, since it is larger than the sum of its proper divisors (1).

380139679 is an equidigital number, since it uses as much as digits as its factorization.

380139679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 380139679 is about 19497.1710512064. The cubic root of 380139679 is about 724.4043805646.

The spelling of 380139679 in words is "three hundred eighty million, one hundred thirty-nine thousand, six hundred seventy-nine".