84180801 has 16 divisors (see below), whose sum is σ = 114696000. Its totient is φ = 54899520.

The previous prime is 84180797. The next prime is 84180869. The reversal of 84180801 is 10808148.

It is not a de Polignac number, because 84180801 - 2² = 84180797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84180401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78811 + ... + 79871.

It is an arithmetic number, because the mean of its divisors is an integer number (7168500).

Almost surely, 2^84180801 is an apocalyptic number.

It is an amenable number.

84180801 is a deficient number, since it is larger than the sum of its proper divisors (30515199).

84180801 is a wasteful number, since it uses less digits than its factorization.

84180801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 84180801 is about 9175.0095912756. The cubic root of 84180801 is about 438.2659036772.

Adding to 84180801 its reverse (10808148), we get a palindrome (94988949).

The spelling of 84180801 in words is "eighty-four million, one hundred eighty thousand, eight hundred one".