377921 has 8 divisors (see below), whose sum is σ = 397824. Its totient is φ = 358560.

The previous prime is 377911. The next prime is 377963. The reversal of 377921 is 129773.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 377921 - 2¹⁰ = 376897 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (377911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (49728).

2³⁷⁷⁹²¹ is an apocalyptic number.

377921 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

377921 is a deficient number, since it is larger than the sum of its proper divisors (19903).

377921 is a wasteful number, since it uses less digits than its factorization.

377921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271.

The product of its digits is 2646, while the sum is 29.

The square root of 377921 is about 614.7527958456. The cubic root of 377921 is about 72.2992305045.

The spelling of 377921 in words is "three hundred seventy-seven thousand, nine hundred twenty-one".