855551974 has 8 divisors (see below), whose sum is σ = 1284824520. Its totient is φ = 427277136.

The previous prime is 855551971. The next prime is 855551993. The reversal of 855551974 is 479155558.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855551971) 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, 247279 + ... + 250714.

It is an arithmetic number, because the mean of its divisors is an integer number (160603065).

Almost surely, 2^855551974 is an apocalyptic number.

855551974 is a deficient number, since it is larger than the sum of its proper divisors (429272546).

855551974 is a wasteful number, since it uses less digits than its factorization.

855551974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498854.

The product of its digits is 1260000, while the sum is 49.

The square root of 855551974 is about 29249.8200678226. The cubic root of 855551974 is about 949.3261977392.

The spelling of 855551974 in words is "eight hundred fifty-five million, five hundred fifty-one thousand, nine hundred seventy-four".