855391430 has 8 divisors (see below), whose sum is σ = 1539704592. Its totient is φ = 342156568.

The previous prime is 855391429. The next prime is 855391447. The reversal of 855391430 is 34193558.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42769562 + ... + 42769581.

It is an arithmetic number, because the mean of its divisors is an integer number (192463074).

Almost surely, 2^855391430 is an apocalyptic number.

855391430 is a deficient number, since it is larger than the sum of its proper divisors (684313162).

855391430 is a wasteful number, since it uses less digits than its factorization.

855391430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85539150.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 855391430 is about 29247.0755803038. The cubic root of 855391430 is about 949.2668137922.

The spelling of 855391430 in words is "eight hundred fifty-five million, three hundred ninety-one thousand, four hundred thirty".