377989943 has 4 divisors (see below), whose sum is σ = 379558608. Its totient is φ = 376421280.

The previous prime is 377989939. The next prime is 377989961. The reversal of 377989943 is 349989773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349989773 = 7 ⋅49998539.

It is a cyclic number.

It is not a de Polignac number, because 377989943 - 2² = 377989939 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 (377989993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783971 + ... + 784452.

It is an arithmetic number, because the mean of its divisors is an integer number (94889652).

Almost surely, 2^377989943 is an apocalyptic number.

377989943 is a deficient number, since it is larger than the sum of its proper divisors (1568665).

377989943 is a wasteful number, since it uses less digits than its factorization.

377989943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568664.

The product of its digits is 10287648, while the sum is 59.

The square root of 377989943 is about 19441.9634553715. The cubic root of 377989943 is about 723.0362668145.

The spelling of 377989943 in words is "three hundred seventy-seven million, nine hundred eighty-nine thousand, nine hundred forty-three".