380949797 has 4 divisors (see below), whose sum is σ = 381028140. Its totient is φ = 380871456.

The previous prime is 380949773. The next prime is 380949823. The reversal of 380949797 is 797949083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797949083 = 31 ⋅25740293.

It can be written as a sum of positive squares in 2 ways, for example, as 343323841 + 37625956 = 18529^2 + 6134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380949797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380949707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31358 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (95257035).

Almost surely, 2^380949797 is an apocalyptic number.

It is an amenable number.

380949797 is a deficient number, since it is larger than the sum of its proper divisors (78343).

380949797 is an equidigital number, since it uses as much as digits as its factorization.

380949797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78342.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 380949797 is about 19517.9352647763. The cubic root of 380949797 is about 724.9186096504.

The spelling of 380949797 in words is "three hundred eighty million, nine hundred forty-nine thousand, seven hundred ninety-seven".