84634812 has 36 divisors (see below), whose sum is σ = 214228560. Its totient is φ = 28173312.

The previous prime is 84634811. The next prime is 84634841. The reversal of 84634812 is 21843648.

84634812 is a `hidden beast` number, since 8 + 4 + 634 + 8 + 12 = 666.

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

It is a super-3 number, since 3×84634812³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84634811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40489 + ... + 42527.

Almost surely, 2^84634812 is an apocalyptic number.

It is an amenable number.

84634812 is an abundant number, since it is smaller than the sum of its proper divisors (129593748).

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

84634812 is a wasteful number, since it uses less digits than its factorization.

84634812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202 (or 3197 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 84634812 is about 9199.7180391575. The cubic root of 84634812 is about 439.0523890066.

The spelling of 84634812 in words is "eighty-four million, six hundred thirty-four thousand, eight hundred twelve".