812657485 has 8 divisors (see below), whose sum is σ = 977764320. Its totient is φ = 648409104.

The previous prime is 812657471. The next prime is 812657507. The reversal of 812657485 is 584756218.

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 812657485 - 2⁵ = 812657453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212527 + ... + 216316.

It is an arithmetic number, because the mean of its divisors is an integer number (122220540).

Almost surely, 2^812657485 is an apocalyptic number.

It is an amenable number.

812657485 is a deficient number, since it is larger than the sum of its proper divisors (165106835).

812657485 is a wasteful number, since it uses less digits than its factorization.

812657485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429227.

The product of its digits is 537600, while the sum is 46.

The square root of 812657485 is about 28507.1479632741. The cubic root of 812657485 is about 933.1880739782.

The spelling of 812657485 in words is "eight hundred twelve million, six hundred fifty-seven thousand, four hundred eighty-five".