812657484 has 36 divisors (see below), whose sum is σ = 2058936880. Its totient is φ = 270263520.

The previous prime is 812657471. The next prime is 812657507. The reversal of 812657484 is 484756218.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9907 + ... + 41514.

Almost surely, 2^812657484 is an apocalyptic number.

It is an amenable number.

812657484 is an abundant number, since it is smaller than the sum of its proper divisors (1246279396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812657484 is a wasteful number, since it uses less digits than its factorization.

812657484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51870 (or 51865 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 812657484 is about 28507.1479457346. The cubic root of 812657484 is about 933.1880735954.

The spelling of 812657484 in words is "eight hundred twelve million, six hundred fifty-seven thousand, four hundred eighty-four".