83523011 has 24 divisors (see below), whose sum is σ = 99610560. Its totient is φ = 69420000.

The previous prime is 83523007. The next prime is 83523017. The reversal of 83523011 is 11032538.

It is not a de Polignac number, because 83523011 - 2² = 83523007 is a prime.

It is a super-2 number, since 2×83523011² = 13952186733012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83523017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332636 + ... + 332886.

It is an arithmetic number, because the mean of its divisors is an integer number (4150440).

Almost surely, 2^83523011 is an apocalyptic number.

83523011 is a deficient number, since it is larger than the sum of its proper divisors (16087549).

83523011 is a wasteful number, since it uses less digits than its factorization.

83523011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 83523011 is about 9139.0924604142. The cubic root of 83523011 is about 437.1213786593.

Adding to 83523011 its reverse (11032538), we get a palindrome (94555549).

The spelling of 83523011 in words is "eighty-three million, five hundred twenty-three thousand, eleven".