377961289 has 4 divisors (see below), whose sum is σ = 400194324. Its totient is φ = 355728256.

The previous prime is 377961251. The next prime is 377961299. The reversal of 377961289 is 982169773.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 286184889 + 91776400 = 16917^2 + 9580^2 .

It is a cyclic number.

It is not a de Polignac number, because 377961289 - 2⁹ = 377960777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (377961209) 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, 11116492 + ... + 11116525.

It is an arithmetic number, because the mean of its divisors is an integer number (100048581).

Almost surely, 2^377961289 is an apocalyptic number.

It is an amenable number.

377961289 is a deficient number, since it is larger than the sum of its proper divisors (22233035).

377961289 is a wasteful number, since it uses less digits than its factorization.

377961289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22233034.

The product of its digits is 1143072, while the sum is 52.

The square root of 377961289 is about 19441.2265302372. The cubic root of 377961289 is about 723.0179961303.

The spelling of 377961289 in words is "three hundred seventy-seven million, nine hundred sixty-one thousand, two hundred eighty-nine".