84783906 has 48 divisors (see below), whose sum is σ = 188073600. Its totient is φ = 27597024.

The previous prime is 84783901. The next prime is 84783967. The reversal of 84783906 is 60938748.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84783901) 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, 154725 + ... + 155271.

It is an arithmetic number, because the mean of its divisors is an integer number (3918200).

Almost surely, 2^84783906 is an apocalyptic number.

84783906 is an abundant number, since it is smaller than the sum of its proper divisors (103289694).

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

84783906 is a wasteful number, since it uses less digits than its factorization.

84783906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 84783906 is about 9207.8176567523. The cubic root of 84783906 is about 439.3100516020.

The spelling of 84783906 in words is "eighty-four million, seven hundred eighty-three thousand, nine hundred six".