83272989 has 8 divisors (see below), whose sum is σ = 112594752. Its totient is φ = 54733280.

The previous prime is 83272967. The next prime is 83272997. The reversal of 83272989 is 98927238.

It is a happy number.

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 83272989 - 2²⁰ = 82224413 is a prime.

It is a super-4 number, since 4×83272989⁴ (a number of 33 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83272589) 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, 195264 + ... + 195689.

It is an arithmetic number, because the mean of its divisors is an integer number (14074344).

Almost surely, 2^83272989 is an apocalyptic number.

It is an amenable number.

83272989 is a deficient number, since it is larger than the sum of its proper divisors (29321763).

83272989 is a wasteful number, since it uses less digits than its factorization.

83272989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391027.

The product of its digits is 435456, while the sum is 48.

The square root of 83272989 is about 9125.4034979282. The cubic root of 83272989 is about 436.6847756477.

The spelling of 83272989 in words is "eighty-three million, two hundred seventy-two thousand, nine hundred eighty-nine".