84082401 has 24 divisors (see below), whose sum is σ = 134892960. Its totient is φ = 51740208.

The previous prime is 84082393. The next prime is 84082417. The reversal of 84082401 is 10428048.

It is not a de Polignac number, because 84082401 - 2³ = 84082393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84082421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4651 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (5620540).

Almost surely, 2^84082401 is an apocalyptic number.

It is an amenable number.

84082401 is a deficient number, since it is larger than the sum of its proper divisors (50810559).

84082401 is a wasteful number, since it uses less digits than its factorization.

84082401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18462 (or 18443 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 84082401 is about 9169.6456311027. The cubic root of 84082401 is about 438.0950722501.

The spelling of 84082401 in words is "eighty-four million, eighty-two thousand, four hundred one".