84001425 has 12 divisors (see below), whose sum is σ = 138882480. Its totient is φ = 44800720.

The previous prime is 84001399. The next prime is 84001439. The reversal of 84001425 is 52410048.

It is not a de Polignac number, because 84001425 - 2⁹ = 84000913 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84001395 and 84001404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559935 + ... + 560084.

It is an arithmetic number, because the mean of its divisors is an integer number (11573540).

Almost surely, 2^84001425 is an apocalyptic number.

It is an amenable number.

84001425 is a deficient number, since it is larger than the sum of its proper divisors (54881055).

84001425 is a wasteful number, since it uses less digits than its factorization.

84001425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120032 (or 1120027 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 84001425 is about 9165.2291297054. The cubic root of 84001425 is about 437.9543904886.

The spelling of 84001425 in words is "eighty-four million, one thousand, four hundred twenty-five".