83872011 has 8 divisors (see below), whose sum is σ = 113662864. Its totient is φ = 54997920.

The previous prime is 83871979. The next prime is 83872013. The reversal of 83872011 is 11027838.

It is a happy number.

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

It is not a de Polignac number, because 83872011 - 2⁵ = 83871979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83872011.

It is not an unprimeable number, because it can be changed into a prime (83872013) 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, 228976 + ... + 229341.

It is an arithmetic number, because the mean of its divisors is an integer number (14207858).

Almost surely, 2^83872011 is an apocalyptic number.

83872011 is a deficient number, since it is larger than the sum of its proper divisors (29790853).

83872011 is a wasteful number, since it uses less digits than its factorization.

83872011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458381.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 83872011 is about 9158.1663557723. The cubic root of 83872011 is about 437.7293682722.

Adding to 83872011 its reverse (11027838), we get a palindrome (94899849).

The spelling of 83872011 in words is "eighty-three million, eight hundred seventy-two thousand, eleven".