377221 has 4 divisors (see below), whose sum is σ = 406252. Its totient is φ = 348192.

The previous prime is 377219. The next prime is 377231. The reversal of 377221 is 122773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122773 = 7 ⋅17539.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 314721 = 250^2 + 561^2 .

It is not a de Polignac number, because 377221 - 2¹ = 377219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 377192 and 377201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377231) 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, 14496 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (101563).

2³⁷⁷²²¹ is an apocalyptic number.

It is an amenable number.

377221 is a deficient number, since it is larger than the sum of its proper divisors (29031).

377221 is a wasteful number, since it uses less digits than its factorization.

377221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29030.

The product of its digits is 588, while the sum is 22.

The square root of 377221 is about 614.1831974257. The cubic root of 377221 is about 72.2545644319.

Adding to 377221 its reverse (122773), we get a palindrome (499994).

The spelling of 377221 in words is "three hundred seventy-seven thousand, two hundred twenty-one", and thus it is an iban number.