84000427 has 8 divisors (see below), whose sum is σ = 96083456. Its totient is φ = 71938152.

The previous prime is 84000409. The next prime is 84000437. The reversal of 84000427 is 72400048.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84000427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84000407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4768 + ... + 13810.

It is an arithmetic number, because the mean of its divisors is an integer number (12010432).

Almost surely, 2^84000427 is an apocalyptic number.

84000427 is a deficient number, since it is larger than the sum of its proper divisors (12083029).

84000427 is a wasteful number, since it uses less digits than its factorization.

84000427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10377.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 84000427 is about 9165.1746846419. The cubic root of 84000427 is about 437.9526560727.

The spelling of 84000427 in words is "eighty-four million, four hundred twenty-seven", and thus it is an aban number.