84049894 has 4 divisors (see below), whose sum is σ = 126074844. Its totient is φ = 42024946.

The previous prime is 84049873. The next prime is 84049919. The reversal of 84049894 is 49894048.

It is a happy number.

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

It is a super-2 number, since 2×84049894² = 14128769362822472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21012472 + ... + 21012475.

It is an arithmetic number, because the mean of its divisors is an integer number (31518711).

Almost surely, 2^84049894 is an apocalyptic number.

84049894 is a deficient number, since it is larger than the sum of its proper divisors (42024950).

84049894 is a wasteful number, since it uses less digits than its factorization.

84049894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42024949.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 84049894 is about 9167.8729266935. The cubic root of 84049894 is about 438.0386078295.

The spelling of 84049894 in words is "eighty-four million, forty-nine thousand, eight hundred ninety-four".