83609998 has 8 divisors (see below), whose sum is σ = 125637120. Its totient is φ = 41730960.

The previous prime is 83609993. The next prime is 83610011. The reversal of 83609998 is 89990638.

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 (83609993) 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, 35598 + ... + 37873.

It is an arithmetic number, because the mean of its divisors is an integer number (15704640).

Almost surely, 2^83609998 is an apocalyptic number.

83609998 is a deficient number, since it is larger than the sum of its proper divisors (42027122).

83609998 is a wasteful number, since it uses less digits than its factorization.

83609998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74042.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 83609998 is about 9143.8502831138. The cubic root of 83609998 is about 437.2730761147.

The spelling of 83609998 in words is "eighty-three million, six hundred nine thousand, nine hundred ninety-eight".