854629391 has 16 divisors (see below), whose sum is σ = 1102256640. Its totient is φ = 642979680.

The previous prime is 854629357. The next prime is 854629439. The reversal of 854629391 is 193926458.

854629391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 854629391 - 2⁶ = 854629327 is a prime.

It is a super-2 number, since 2×854629391² = 1460782791922061762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854629301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189131 + ... + 193596.

It is an arithmetic number, because the mean of its divisors is an integer number (68891040).

Almost surely, 2^854629391 is an apocalyptic number.

854629391 is a deficient number, since it is larger than the sum of its proper divisors (247627249).

854629391 is a wasteful number, since it uses less digits than its factorization.

854629391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382774.

The product of its digits is 466560, while the sum is 47.

The square root of 854629391 is about 29234.0450673526. The cubic root of 854629391 is about 948.9848402514.

The spelling of 854629391 in words is "eight hundred fifty-four million, six hundred twenty-nine thousand, three hundred ninety-one".