83709272 has 16 divisors (see below), whose sum is σ = 157615200. Its totient is φ = 41678560.

The previous prime is 83709257. The next prime is 83709277. The reversal of 83709272 is 27290738.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83709277) 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, 19979 + ... + 23802.

It is an arithmetic number, because the mean of its divisors is an integer number (9850950).

Almost surely, 2^83709272 is an apocalyptic number.

It is an amenable number.

83709272 is a deficient number, since it is larger than the sum of its proper divisors (73905928).

83709272 is a wasteful number, since it uses less digits than its factorization.

83709272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44026 (or 44022 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 83709272 is about 9149.2771299158. The cubic root of 83709272 is about 437.4460724823.

The spelling of 83709272 in words is "eighty-three million, seven hundred nine thousand, two hundred seventy-two".