812654705 has 16 divisors (see below), whose sum is σ = 983271744. Its totient is φ = 644754240.

The previous prime is 812654657. The next prime is 812654707. The reversal of 812654705 is 507456218.

It is not a de Polignac number, because 812654705 - 2⁶ = 812654641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812654707) 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, 399902 + ... + 401928.

It is an arithmetic number, because the mean of its divisors is an integer number (61454484).

Almost surely, 2^812654705 is an apocalyptic number.

It is an amenable number.

812654705 is a deficient number, since it is larger than the sum of its proper divisors (170617039).

812654705 is a wasteful number, since it uses less digits than its factorization.

812654705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 812654705 is about 28507.0992035317. The cubic root of 812654705 is about 933.1870098703.

The spelling of 812654705 in words is "eight hundred twelve million, six hundred fifty-four thousand, seven hundred five".