8077813 has 4 divisors (see below), whose sum is σ = 8101440. Its totient is φ = 8054188.

The previous prime is 8077799. The next prime is 8077847. The reversal of 8077813 is 3187708.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 8077813 - 2²¹ = 5980661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8077213) 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, 11293 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (2025360).

Almost surely, 2^8077813 is an apocalyptic number.

It is an amenable number.

8077813 is a deficient number, since it is larger than the sum of its proper divisors (23627).

8077813 is a wasteful number, since it uses less digits than its factorization.

8077813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23626.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 8077813 is about 2842.1493627183. The cubic root of 8077813 is about 200.6463505712.

The spelling of 8077813 in words is "eight million, seventy-seven thousand, eight hundred thirteen".