84599970 has 192 divisors, whose sum is σ = 268894080. Its totient is φ = 16837632.

The previous prime is 84599969. The next prime is 84599971. The reversal of 84599970 is 7999548.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84599969) and next prime (84599971).

It is not an unprimeable number, because it can be changed into a prime (84599971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 362974 + ... + 363206.

It is an arithmetic number, because the mean of its divisors is an integer number (1400490).

Almost surely, 2^84599970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84599970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134447040).

84599970 is an abundant number, since it is smaller than the sum of its proper divisors (184294110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84599970 is a wasteful number, since it uses less digits than its factorization.

84599970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 84599970 is about 9197.8241992332. The cubic root of 84599970 is about 438.9921318356.

The spelling of 84599970 in words is "eighty-four million, five hundred ninety-nine thousand, nine hundred seventy".