8377381 has 4 divisors (see below), whose sum is σ = 8383500. Its totient is φ = 8371264.

The previous prime is 8377373. The next prime is 8377393. The reversal of 8377381 is 1837738.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1664100 + 6713281 = 1290^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 8377381 - 2³ = 8377373 is a prime.

It is a super-2 number, since 2×8377381² = 140361024838322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8377381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8377321) 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, 45 + ... + 4093.

It is an arithmetic number, because the mean of its divisors is an integer number (2095875).

Almost surely, 2^8377381 is an apocalyptic number.

It is an amenable number.

8377381 is a deficient number, since it is larger than the sum of its proper divisors (6119).

8377381 is a wasteful number, since it uses less digits than its factorization.

8377381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118.

The product of its digits is 28224, while the sum is 37.

The square root of 8377381 is about 2894.3705706077. The cubic root of 8377381 is about 203.0966480665.

The spelling of 8377381 in words is "eight million, three hundred seventy-seven thousand, three hundred eighty-one".