379988709 has 16 divisors (see below), whose sum is σ = 539164800. Its totient is φ = 237219840.

The previous prime is 379988683. The next prime is 379988723. The reversal of 379988709 is 907889973.

It is a happy number.

It is not a de Polignac number, because 379988709 - 2²¹ = 377891557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379988759) 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, 8572 + ... + 28869.

It is an arithmetic number, because the mean of its divisors is an integer number (33697800).

Almost surely, 2^379988709 is an apocalyptic number.

It is an amenable number.

379988709 is a deficient number, since it is larger than the sum of its proper divisors (159176091).

379988709 is a wasteful number, since it uses less digits than its factorization.

379988709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37660.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The square root of 379988709 is about 19493.2990794273. The cubic root of 379988709 is about 724.3084703714.

The spelling of 379988709 in words is "three hundred seventy-nine million, nine hundred eighty-eight thousand, seven hundred nine".