402811117 has 4 divisors (see below), whose sum is σ = 415805056. Its totient is φ = 389817180.

The previous prime is 402811111. The next prime is 402811139. The reversal of 402811117 is 711118204.

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 402811117 - 2³ = 402811109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402811091 and 402811100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402811111) 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, 6496923 + ... + 6496984.

It is an arithmetic number, because the mean of its divisors is an integer number (103951264).

Almost surely, 2^402811117 is an apocalyptic number.

It is an amenable number.

402811117 is a deficient number, since it is larger than the sum of its proper divisors (12993939).

402811117 is a wasteful number, since it uses less digits than its factorization.

402811117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993938.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 402811117 is about 20070.1548823122. The cubic root of 402811117 is about 738.5283126187.

The spelling of 402811117 in words is "four hundred two million, eight hundred eleven thousand, one hundred seventeen".