84290399 has 8 divisors (see below), whose sum is σ = 85713312. Its totient is φ = 82874880.

The previous prime is 84290357. The next prime is 84290407. The reversal of 84290399 is 99309248.

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-84290399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84295399) 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, 24134 + ... + 27404.

It is an arithmetic number, because the mean of its divisors is an integer number (10714164).

Almost surely, 2^84290399 is an apocalyptic number.

84290399 is a deficient number, since it is larger than the sum of its proper divisors (1422913).

84290399 is a wasteful number, since it uses less digits than its factorization.

84290399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 84290399 is about 9180.9802853508. The cubic root of 84290399 is about 438.4560192209.

The spelling of 84290399 in words is "eighty-four million, two hundred ninety thousand, three hundred ninety-nine".