854406291 has 4 divisors (see below), whose sum is σ = 1139208392. Its totient is φ = 569604192.

The previous prime is 854406253. The next prime is 854406299. The reversal of 854406291 is 192604458.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-854406291 is a prime.

It is a super-2 number, since 2×854406291² = 1460020220200753362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854406299) 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, 142401046 + ... + 142401051.

It is an arithmetic number, because the mean of its divisors is an integer number (284802098).

Almost surely, 2^854406291 is an apocalyptic number.

854406291 is a deficient number, since it is larger than the sum of its proper divisors (284802101).

854406291 is a wasteful number, since it uses less digits than its factorization.

854406291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284802100.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 854406291 is about 29230.2290617094. The cubic root of 854406291 is about 948.9022559383.

The spelling of 854406291 in words is "eight hundred fifty-four million, four hundred six thousand, two hundred ninety-one".