84590426 has 8 divisors (see below), whose sum is σ = 127619604. Its totient is φ = 42050560.

The previous prime is 84590423. The next prime is 84590437. The reversal of 84590426 is 62409548.

It can be written as a sum of positive squares in 2 ways, for example, as 83265625 + 1324801 = 9125^2 + 1151^2 .

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

It is a super-2 number, since 2×84590426² = 14311080341722952, which contains 22 as substring.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 84590426.

It is not an unprimeable number, because it can be changed into a prime (84590423) 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, 121895 + ... + 122586.

Almost surely, 2^84590426 is an apocalyptic number.

84590426 is a deficient number, since it is larger than the sum of its proper divisors (43029178).

84590426 is a wasteful number, since it uses less digits than its factorization.

84590426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244656.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 84590426 is about 9197.3053662472. The cubic root of 84590426 is about 438.9756231675.

The spelling of 84590426 in words is "eighty-four million, five hundred ninety thousand, four hundred twenty-six".