84090946 has 8 divisors (see below), whose sum is σ = 126285840. Its totient is φ = 41995668.

The previous prime is 84090931. The next prime is 84090947. The reversal of 84090946 is 64909048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 84090899 and 84090908.

It is not an unprimeable number, because it can be changed into a prime (84090947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22756 + ... + 26191.

It is an arithmetic number, because the mean of its divisors is an integer number (15785730).

Almost surely, 2^84090946 is an apocalyptic number.

84090946 is a deficient number, since it is larger than the sum of its proper divisors (42194894).

84090946 is a wasteful number, since it uses less digits than its factorization.

84090946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49808.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 84090946 is about 9170.1115587543. Note that the first 3 decimals coincide. The cubic root of 84090946 is about 438.1099124368.

The spelling of 84090946 in words is "eighty-four million, ninety thousand, nine hundred forty-six".