379872749 has 8 divisors (see below), whose sum is σ = 389413752. Its totient is φ = 370344960.

The previous prime is 379872733. The next prime is 379872797. The reversal of 379872749 is 947278973.

It can be written as a sum of positive squares in 4 ways, for example, as 25755625 + 354117124 = 5075^2 + 18818^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 379872749 - 2⁴ = 379872733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 379872694 and 379872703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379872799) 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, 81917 + ... + 86429.

It is an arithmetic number, because the mean of its divisors is an integer number (48676719).

Almost surely, 2^379872749 is an apocalyptic number.

It is an amenable number.

379872749 is a deficient number, since it is larger than the sum of its proper divisors (9541003).

379872749 is a wasteful number, since it uses less digits than its factorization.

379872749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607.

The product of its digits is 5334336, while the sum is 56.

The square root of 379872749 is about 19490.3244970421. The cubic root of 379872749 is about 724.2347845369.

The spelling of 379872749 in words is "three hundred seventy-nine million, eight hundred seventy-two thousand, seven hundred forty-nine".