377891 has 4 divisors (see below), whose sum is σ = 397800. Its totient is φ = 357984.

The previous prime is 377887. The next prime is 377911. The reversal of 377891 is 198773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198773 = 197 ⋅1009.

It is a cyclic number.

It is not a de Polignac number, because 377891 - 2² = 377887 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 377891.

It is not an unprimeable number, because it can be changed into a prime (377801) 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, 9926 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (99450).

2³⁷⁷⁸⁹¹ is an apocalyptic number.

377891 is a deficient number, since it is larger than the sum of its proper divisors (19909).

377891 is a wasteful number, since it uses less digits than its factorization.

377891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19908.

The product of its digits is 10584, while the sum is 35.

The square root of 377891 is about 614.7283953097. The cubic root of 377891 is about 72.2973173760.

The spelling of 377891 in words is "three hundred seventy-seven thousand, eight hundred ninety-one".