84394403 has 4 divisors (see below), whose sum is σ = 84414960. Its totient is φ = 84373848.

The previous prime is 84394381. The next prime is 84394439. The reversal of 84394403 is 30449348.

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

It is a cyclic number.

It is not a de Polignac number, because 84394403 - 2¹⁸ = 84132259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84394463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (21103740).

Almost surely, 2^84394403 is an apocalyptic number.

84394403 is a deficient number, since it is larger than the sum of its proper divisors (20557).

84394403 is a wasteful number, since it uses less digits than its factorization.

84394403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 84394403 is about 9186.6426402685. The cubic root of 84394403 is about 438.6362787277.

The spelling of 84394403 in words is "eighty-four million, three hundred ninety-four thousand, four hundred three".