84770634 has 32 divisors (see below), whose sum is σ = 184907520. Its totient is φ = 25751232.

The previous prime is 84770603. The next prime is 84770681. The reversal of 84770634 is 43607748.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84770592 and 84770601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717 + ... + 13040.

It is an arithmetic number, because the mean of its divisors is an integer number (5778360).

Almost surely, 2^84770634 is an apocalyptic number.

84770634 is an abundant number, since it is smaller than the sum of its proper divisors (100136886).

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

84770634 is a wasteful number, since it uses less digits than its factorization.

84770634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 84770634 is about 9207.0969366028. The cubic root of 84770634 is about 439.2871273327.

The spelling of 84770634 in words is "eighty-four million, seven hundred seventy thousand, six hundred thirty-four".