854720681 has 16 divisors (see below), whose sum is σ = 912157440. Its totient is φ = 798595200.

The previous prime is 854720621. The next prime is 854720689. The reversal of 854720681 is 186027458.

It is a cyclic number.

It is not a de Polignac number, because 854720681 - 2¹⁴ = 854704297 is a prime.

It is a super-2 number, since 2×854720681² = 1461094885058207522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854720689) 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, 599936 + ... + 601358.

It is an arithmetic number, because the mean of its divisors is an integer number (57009840).

Almost surely, 2^854720681 is an apocalyptic number.

It is an amenable number.

854720681 is a deficient number, since it is larger than the sum of its proper divisors (57436759).

854720681 is a wasteful number, since it uses less digits than its factorization.

854720681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 854720681 is about 29235.6063901538. The cubic root of 854720681 is about 949.0186286757.

The spelling of 854720681 in words is "eight hundred fifty-four million, seven hundred twenty thousand, six hundred eighty-one".