83736989 has 8 divisors (see below), whose sum is σ = 97321920. Its totient is φ = 70557696.

The previous prime is 83736977. The next prime is 83737001. The reversal of 83736989 is 98963738.

It is an interprime number because it is at equal distance from previous prime (83736977) and next prime (83737001).

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

It is a cyclic number.

It is not a de Polignac number, because 83736989 - 2⁸ = 83736733 is a prime.

It is a super-2 number, since 2×83736989² = 14023766653572242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83736989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83736689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100964 + ... + 101789.

It is an arithmetic number, because the mean of its divisors is an integer number (12165240).

Almost surely, 2^83736989 is an apocalyptic number.

It is an amenable number.

83736989 is a deficient number, since it is larger than the sum of its proper divisors (13584931).

83736989 is a wasteful number, since it uses less digits than its factorization.

83736989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202819.

The product of its digits is 1959552, while the sum is 53.

The square root of 83736989 is about 9150.7917143819. The cubic root of 83736989 is about 437.4943481175.

The spelling of 83736989 in words is "eighty-three million, seven hundred thirty-six thousand, nine hundred eighty-nine".