855152786 has 4 divisors (see below), whose sum is σ = 1282729182. Its totient is φ = 427576392.

The previous prime is 855152743. The next prime is 855152791. The reversal of 855152786 is 687251558.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 763472161 + 91680625 = 27631^2 + 9575^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 855152786.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213788195 + ... + 213788198.

Almost surely, 2^855152786 is an apocalyptic number.

855152786 is a deficient number, since it is larger than the sum of its proper divisors (427576396).

855152786 is a wasteful number, since it uses less digits than its factorization.

855152786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427576395.

The product of its digits is 672000, while the sum is 47.

The square root of 855152786 is about 29242.9955031970. The cubic root of 855152786 is about 949.1785275442.

The spelling of 855152786 in words is "eight hundred fifty-five million, one hundred fifty-two thousand, seven hundred eighty-six".