84389954 has 8 divisors (see below), whose sum is σ = 138092688. Its totient is φ = 38359060.

The previous prime is 84389953. The next prime is 84389969. The reversal of 84389954 is 45998348.

It is a happy number.

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

It is a super-2 number, since 2×84389954² = 14243328672244232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84389953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917932 + ... + 1917975.

It is an arithmetic number, because the mean of its divisors is an integer number (17261586).

Almost surely, 2^84389954 is an apocalyptic number.

84389954 is a deficient number, since it is larger than the sum of its proper divisors (53702734).

84389954 is a wasteful number, since it uses less digits than its factorization.

84389954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835920.

The product of its digits is 1244160, while the sum is 50.

The square root of 84389954 is about 9186.4004920317. The cubic root of 84389954 is about 438.6285707635.

The spelling of 84389954 in words is "eighty-four million, three hundred eighty-nine thousand, nine hundred fifty-four".