84145846 has 4 divisors (see below), whose sum is σ = 126218772. Its totient is φ = 42072922.

The previous prime is 84145819. The next prime is 84145847. The reversal of 84145846 is 64854148.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 84145799 and 84145808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84145847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036460 + ... + 21036463.

It is an arithmetic number, because the mean of its divisors is an integer number (31554693).

Almost surely, 2^84145846 is an apocalyptic number.

84145846 is a deficient number, since it is larger than the sum of its proper divisors (42072926).

84145846 is a wasteful number, since it uses less digits than its factorization.

84145846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42072925.

The product of its digits is 122880, while the sum is 40.

The square root of 84145846 is about 9173.1044908471. The cubic root of 84145846 is about 438.2052338436.

The spelling of 84145846 in words is "eighty-four million, one hundred forty-five thousand, eight hundred forty-six".