856648041 has 16 divisors (see below), whose sum is σ = 1254589440. Its totient is φ = 517516560.

The previous prime is 856648019. The next prime is 856648103. The reversal of 856648041 is 140846658.

It is not a de Polignac number, because 856648041 - 2⁶ = 856647977 is a prime.

It is a super-2 number, since 2×856648041² = 1467691732298275362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 856647984 and 856648002.

It is not an unprimeable number, because it can be changed into a prime (856641041) 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, 325405 + ... + 328026.

It is an arithmetic number, because the mean of its divisors is an integer number (78411840).

Almost surely, 2^856648041 is an apocalyptic number.

It is an amenable number.

856648041 is a deficient number, since it is larger than the sum of its proper divisors (397941399).

856648041 is a wasteful number, since it uses less digits than its factorization.

856648041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653476.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 856648041 is about 29268.5503740790. The cubic root of 856648041 is about 949.7314258330.

The spelling of 856648041 in words is "eight hundred fifty-six million, six hundred forty-eight thousand, forty-one".