380665773 has 6 divisors (see below), whose sum is σ = 549850574. Its totient is φ = 253777176.

The previous prime is 380665763. The next prime is 380665783. The reversal of 380665773 is 377566083.

It is an interprime number because it is at equal distance from previous prime (380665763) and next prime (380665783).

It can be written as a sum of positive squares in only one way, i.e., 332807049 + 47858724 = 18243^2 + 6918^2 .

It is not a de Polignac number, because 380665773 - 2⁴ = 380665757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380665723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21148090 + ... + 21148107.

Almost surely, 2^380665773 is an apocalyptic number.

It is an amenable number.

380665773 is a deficient number, since it is larger than the sum of its proper divisors (169184801).

380665773 is a wasteful number, since it uses less digits than its factorization.

380665773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296203 (or 42296200 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 380665773 is about 19510.6579335501. The cubic root of 380665773 is about 724.7384061385.

The spelling of 380665773 in words is "three hundred eighty million, six hundred sixty-five thousand, seven hundred seventy-three".