84161799 has 12 divisors (see below), whose sum is σ = 125759400. Its totient is φ = 54172944.

The previous prime is 84161783. The next prime is 84161809. The reversal of 84161799 is 99716148.

It is a happy number.

It is not a de Polignac number, because 84161799 - 2⁴ = 84161783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84161719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160969 + ... + 161490.

It is an arithmetic number, because the mean of its divisors is an integer number (10479950).

Almost surely, 2^84161799 is an apocalyptic number.

84161799 is a deficient number, since it is larger than the sum of its proper divisors (41597601).

84161799 is a wasteful number, since it uses less digits than its factorization.

84161799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322494 (or 322491 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 84161799 is about 9173.9740025793. The cubic root of 84161799 is about 438.2329248376.

The spelling of 84161799 in words is "eighty-four million, one hundred sixty-one thousand, seven hundred ninety-nine".