84619090 has 8 divisors (see below), whose sum is σ = 152314380. Its totient is φ = 33847632.

The previous prime is 84619079. The next prime is 84619091. The reversal of 84619090 is 9091648.

It can be written as a sum of positive squares in 2 ways, for example, as 84290761 + 328329 = 9181^2 + 573^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84619091) 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 3 ways as a sum of consecutive naturals, for example, 4230945 + ... + 4230964.

Almost surely, 2^84619090 is an apocalyptic number.

84619090 is a deficient number, since it is larger than the sum of its proper divisors (67695290).

84619090 is a wasteful number, since it uses less digits than its factorization.

84619090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461916.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 84619090 is about 9198.8635167612. The cubic root of 84619090 is about 439.0252007887.

The spelling of 84619090 in words is "eighty-four million, six hundred nineteen thousand, ninety".