856041697 has 8 divisors (see below), whose sum is σ = 978638976. Its totient is φ = 733520832.

The previous prime is 856041689. The next prime is 856041701. The reversal of 856041697 is 796140658.

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

It is a cyclic number.

It is not a de Polignac number, because 856041697 - 2³ = 856041689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (856041677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7353 + ... + 42025.

It is an arithmetic number, because the mean of its divisors is an integer number (122329872).

Almost surely, 2^856041697 is an apocalyptic number.

It is an amenable number.

856041697 is a deficient number, since it is larger than the sum of its proper divisors (122597279).

856041697 is a wasteful number, since it uses less digits than its factorization.

856041697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38207.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 856041697 is about 29258.1902550380. The cubic root of 856041697 is about 949.5072964960.

The spelling of 856041697 in words is "eight hundred fifty-six million, forty-one thousand, six hundred ninety-seven".