84812070 has 32 divisors (see below), whose sum is σ = 232627968. Its totient is φ = 19385568.

The previous prime is 84812053. The next prime is 84812071. The reversal of 84812070 is 7021848.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84812071) 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, 201724 + ... + 202143.

It is an arithmetic number, because the mean of its divisors is an integer number (7269624).

Almost surely, 2^84812070 is an apocalyptic number.

84812070 is an abundant number, since it is smaller than the sum of its proper divisors (147815898).

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

84812070 is a wasteful number, since it uses less digits than its factorization.

84812070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403884.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 84812070 is about 9209.3468823799. The cubic root of 84812070 is about 439.3586903870.

The spelling of 84812070 in words is "eighty-four million, eight hundred twelve thousand, seventy".