800699953 has 4 divisors (see below), whose sum is σ = 800757028. Its totient is φ = 800642880.

The previous prime is 800699941. The next prime is 800699971. The reversal of 800699953 is 359996008.

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 289578289 + 511121664 = 17017^2 + 22608^2 .

It is a cyclic number.

It is not a de Polignac number, because 800699953 - 2¹³ = 800691761 is a prime.

It is a super-2 number, since 2×800699953² = 1282240829468404418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 800699897 and 800699906.

It is not an unprimeable number, because it can be changed into a prime (800699453) 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, 8725 + ... + 40957.

It is an arithmetic number, because the mean of its divisors is an integer number (200189257).

Almost surely, 2^800699953 is an apocalyptic number.

It is an amenable number.

800699953 is a deficient number, since it is larger than the sum of its proper divisors (57075).

800699953 is a wasteful number, since it uses less digits than its factorization.

800699953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57074.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 800699953 is about 28296.6420799359. The cubic root of 800699953 is about 928.5884289691.

The spelling of 800699953 in words is "eight hundred million, six hundred ninety-nine thousand, nine hundred fifty-three".