83187426 has 64 divisors (see below), whose sum is σ = 202549248. Its totient is φ = 22234368.

The previous prime is 83187421. The next prime is 83187431. The reversal of 83187426 is 62478138.

It is an interprime number because it is at equal distance from previous prime (83187421) and next prime (83187431).

It is not an unprimeable number, because it can be changed into a prime (83187421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187561 + ... + 188003.

It is an arithmetic number, because the mean of its divisors is an integer number (3164832).

Almost surely, 2^83187426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83187426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101274624).

83187426 is an abundant number, since it is smaller than the sum of its proper divisors (119361822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83187426 is a wasteful number, since it uses less digits than its factorization.

83187426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its digits is 64512, while the sum is 39.

The square root of 83187426 is about 9120.7141167784. The cubic root of 83187426 is about 436.5351598502.

The spelling of 83187426 in words is "eighty-three million, one hundred eighty-seven thousand, four hundred twenty-six".