877373381 has 4 divisors (see below), whose sum is σ = 879859212. Its totient is φ = 874887552.

The previous prime is 877373363. The next prime is 877373423. The reversal of 877373381 is 183373778.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 647244481 + 230128900 = 25441^2 + 15170^2 .

It is a cyclic number.

It is not a de Polignac number, because 877373381 - 2¹⁰ = 877372357 is a prime.

It is a super-2 number, since 2×877373381² = 1539568099374742322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (877373311) 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, 1242386 + ... + 1243091.

It is an arithmetic number, because the mean of its divisors is an integer number (219964803).

Almost surely, 2^877373381 is an apocalyptic number.

It is an amenable number.

877373381 is a deficient number, since it is larger than the sum of its proper divisors (2485831).

877373381 is a wasteful number, since it uses less digits than its factorization.

877373381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485830.

The product of its digits is 592704, while the sum is 47.

The square root of 877373381 is about 29620.4892093294. The cubic root of 877373381 is about 957.3295943911.

The spelling of 877373381 in words is "eight hundred seventy-seven million, three hundred seventy-three thousand, three hundred eighty-one".