854290991 has 4 divisors (see below), whose sum is σ = 857375352. Its totient is φ = 851206632.

The previous prime is 854290967. The next prime is 854291003. The reversal of 854290991 is 199092458.

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

It is a cyclic number.

It is not a de Polignac number, because 854290991 - 2¹⁴ = 854274607 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 (854299991) 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, 1541765 + ... + 1542318.

It is an arithmetic number, because the mean of its divisors is an integer number (214343838).

Almost surely, 2^854290991 is an apocalyptic number.

854290991 is a deficient number, since it is larger than the sum of its proper divisors (3084361).

854290991 is a wasteful number, since it uses less digits than its factorization.

854290991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084360.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 854290991 is about 29228.2567218779. The cubic root of 854290991 is about 948.8595700198.

The spelling of 854290991 in words is "eight hundred fifty-four million, two hundred ninety thousand, nine hundred ninety-one".