376916909 has 2 divisors, whose sum is σ = 376916910. Its totient is φ = 376916908.

The previous prime is 376916863. The next prime is 376916921. The reversal of 376916909 is 909619673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295736809 + 81180100 = 17197^2 + 9010^2 .

It is an emirp because it is prime and its reverse (909619673) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 376916909 - 2⁸ = 376916653 is a prime.

It is a super-2 number, since 2×376916909² = 284132712580228562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376916959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188458454 + 188458455.

It is an arithmetic number, because the mean of its divisors is an integer number (188458455).

Almost surely, 2^376916909 is an apocalyptic number.

It is an amenable number.

376916909 is a deficient number, since it is larger than the sum of its proper divisors (1).

376916909 is an equidigital number, since it uses as much as digits as its factorization.

376916909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 376916909 is about 19414.3480189266. The cubic root of 376916909 is about 722.3514357115.

The spelling of 376916909 in words is "three hundred seventy-six million, nine hundred sixteen thousand, nine hundred nine".