84040199 has 4 divisors (see below), whose sum is σ = 84811320. Its totient is φ = 83269080.

The previous prime is 84040171. The next prime is 84040207. The reversal of 84040199 is 99104048.

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 84040199 - 2¹² = 84036103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84040109) 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, 385397 + ... + 385614.

It is an arithmetic number, because the mean of its divisors is an integer number (21202830).

Almost surely, 2^84040199 is an apocalyptic number.

84040199 is a deficient number, since it is larger than the sum of its proper divisors (771121).

84040199 is a wasteful number, since it uses less digits than its factorization.

84040199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771120.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 84040199 is about 9167.3441628424. The cubic root of 84040199 is about 438.0217648672.

The spelling of 84040199 in words is "eighty-four million, forty thousand, one hundred ninety-nine".