84126399 has 8 divisors (see below), whose sum is σ = 128192640. Its totient is φ = 48072216.

The previous prime is 84126397. The next prime is 84126403. The reversal of 84126399 is 99362148.

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

It is not a de Polignac number, because 84126399 - 2¹ = 84126397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84126399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84126397) 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, 2002989 + ... + 2003030.

It is an arithmetic number, because the mean of its divisors is an integer number (16024080).

Almost surely, 2^84126399 is an apocalyptic number.

84126399 is a deficient number, since it is larger than the sum of its proper divisors (44066241).

84126399 is a wasteful number, since it uses less digits than its factorization.

84126399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006029.

The product of its digits is 93312, while the sum is 42.

The square root of 84126399 is about 9172.0444285884. The cubic root of 84126399 is about 438.1714732792.

The spelling of 84126399 in words is "eighty-four million, one hundred twenty-six thousand, three hundred ninety-nine".