84680775 has 24 divisors (see below), whose sum is σ = 155562960. Its totient is φ = 45162720.

The previous prime is 84680773. The next prime is 84680801. The reversal of 84680775 is 57708648.

It is not a de Polignac number, because 84680775 - 2¹ = 84680773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 84680775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84680773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62052 + ... + 63401.

It is an arithmetic number, because the mean of its divisors is an integer number (6481790).

Almost surely, 2^84680775 is an apocalyptic number.

84680775 is a deficient number, since it is larger than the sum of its proper divisors (70882185).

84680775 is a wasteful number, since it uses less digits than its factorization.

84680775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125472 (or 125461 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 84680775 is about 9202.2157657816. The cubic root of 84680775 is about 439.1318539945.

The spelling of 84680775 in words is "eighty-four million, six hundred eighty thousand, seven hundred seventy-five".