801377813 has 4 divisors (see below), whose sum is σ = 801705120. Its totient is φ = 801050508.

The previous prime is 801377803. The next prime is 801377879. The reversal of 801377813 is 318773108.

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 801377813 - 2⁶ = 801377749 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 (801377803) 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, 159953 + ... + 164886.

It is an arithmetic number, because the mean of its divisors is an integer number (200426280).

Almost surely, 2^801377813 is an apocalyptic number.

It is an amenable number.

801377813 is a deficient number, since it is larger than the sum of its proper divisors (327307).

801377813 is a wasteful number, since it uses less digits than its factorization.

801377813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327306.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 801377813 is about 28308.6172922663. The cubic root of 801377813 is about 928.8503978482.

The spelling of 801377813 in words is "eight hundred one million, three hundred seventy-seven thousand, eight hundred thirteen".