83909590 has 8 divisors (see below), whose sum is σ = 151037280. Its totient is φ = 33563832.

The previous prime is 83909563. The next prime is 83909593. The reversal of 83909590 is 9590938.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83909593) 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, 4195470 + ... + 4195489.

It is an arithmetic number, because the mean of its divisors is an integer number (18879660).

Almost surely, 2^83909590 is an apocalyptic number.

83909590 is a deficient number, since it is larger than the sum of its proper divisors (67127690).

83909590 is a wasteful number, since it uses less digits than its factorization.

83909590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8390966.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 83909590 is about 9160.2177921707. The cubic root of 83909590 is about 437.7947336451.

The spelling of 83909590 in words is "eighty-three million, nine hundred nine thousand, five hundred ninety".