84032401 has 8 divisors (see below), whose sum is σ = 88571880. Its totient is φ = 79602432.

The previous prime is 84032387. The next prime is 84032453. The reversal of 84032401 is 10423048.

It can be written as a sum of positive squares in 4 ways, for example, as 7924225 + 76108176 = 2815^2 + 8724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84032401 - 2⁵ = 84032369 is a prime.

It is a super-2 number, since 2×84032401² = 14122888835649602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84035401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25800 + ... + 28873.

It is an arithmetic number, because the mean of its divisors is an integer number (11071485).

Almost surely, 2^84032401 is an apocalyptic number.

It is an amenable number.

84032401 is a deficient number, since it is larger than the sum of its proper divisors (4539479).

84032401 is a wasteful number, since it uses less digits than its factorization.

84032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54755.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 84032401 is about 9166.9188389556. The cubic root of 84032401 is about 438.0082165914.

Adding to 84032401 its reverse (10423048), we get a palindrome (94455449).

The spelling of 84032401 in words is "eighty-four million, thirty-two thousand, four hundred one".