84961599 has 8 divisors (see below), whose sum is σ = 113388720. Its totient is φ = 56587776.

The previous prime is 84961579. The next prime is 84961627. The reversal of 84961599 is 99516948.

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

It is not a de Polignac number, because 84961599 - 2¹² = 84957503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84961579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9442 + ... + 16095.

It is an arithmetic number, because the mean of its divisors is an integer number (14173590).

Almost surely, 2^84961599 is an apocalyptic number.

84961599 is a deficient number, since it is larger than the sum of its proper divisors (28427121).

84961599 is a wasteful number, since it uses less digits than its factorization.

84961599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26649.

The product of its digits is 699840, while the sum is 51.

The square root of 84961599 is about 9217.4616353962. The cubic root of 84961599 is about 439.6167444358.

The spelling of 84961599 in words is "eighty-four million, nine hundred sixty-one thousand, five hundred ninety-nine".