83917623 has 8 divisors (see below), whose sum is σ = 117779200. Its totient is φ = 53000568.

The previous prime is 83917621. The next prime is 83917633. The reversal of 83917623 is 32671938.

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

It is not a de Polignac number, because 83917623 - 2¹ = 83917621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83917621) 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 7 ways as a sum of consecutive naturals, for example, 736063 + ... + 736176.

It is an arithmetic number, because the mean of its divisors is an integer number (14722400).

Almost surely, 2^83917623 is an apocalyptic number.

83917623 is a deficient number, since it is larger than the sum of its proper divisors (33861577).

83917623 is a wasteful number, since it uses less digits than its factorization.

83917623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472261.

The product of its digits is 54432, while the sum is 39.

The square root of 83917623 is about 9160.6562537844. The cubic root of 83917623 is about 437.8087038117.

The spelling of 83917623 in words is "eighty-three million, nine hundred seventeen thousand, six hundred twenty-three".