6836890381 has 4 divisors (see below), whose sum is σ = 7057435264. Its totient is φ = 6616345500.

The previous prime is 6836890363. The next prime is 6836890387. The reversal of 6836890381 is 1830986386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1830986386 = 2 ⋅915493193.

It is not a de Polignac number, because 6836890381 - 2⁷ = 6836890253 is a prime.

It is a super-2 number, since 2×6836890381² = 93486140163620650322, 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 (6836890387) 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, 110272395 + ... + 110272456.

It is an arithmetic number, because the mean of its divisors is an integer number (1764358816).

Almost surely, 2^6836890381 is an apocalyptic number.

It is an amenable number.

6836890381 is a deficient number, since it is larger than the sum of its proper divisors (220544883).

6836890381 is a wasteful number, since it uses less digits than its factorization.

6836890381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220544882.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 6836890381 is about 82685.4907526103. The cubic root of 6836890381 is about 1897.9562864242.

The spelling of 6836890381 in words is "six billion, eight hundred thirty-six million, eight hundred ninety thousand, three hundred eighty-one".