856672246 has 4 divisors (see below), whose sum is σ = 1285008372. Its totient is φ = 428336122.

The previous prime is 856672213. The next prime is 856672249. The reversal of 856672246 is 642276658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 642276658 = 2 ⋅321138329.

It is a junction number, because it is equal to n+sod(n) for n = 856672196 and 856672205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856672249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214168060 + ... + 214168063.

It is an arithmetic number, because the mean of its divisors is an integer number (321252093).

Almost surely, 2^856672246 is an apocalyptic number.

856672246 is a deficient number, since it is larger than the sum of its proper divisors (428336126).

856672246 is a wasteful number, since it uses less digits than its factorization.

856672246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428336125.

The product of its digits is 967680, while the sum is 46.

The square root of 856672246 is about 29268.9638696009. The cubic root of 856672246 is about 949.7403707873.

The spelling of 856672246 in words is "eight hundred fifty-six million, six hundred seventy-two thousand, two hundred forty-six".