83504331 has 32 divisors (see below), whose sum is σ = 127659840. Its totient is φ = 53913600.

The previous prime is 83504327. The next prime is 83504347. The reversal of 83504331 is 13340538.

It is a happy number.

It is not a de Polignac number, because 83504331 - 2² = 83504327 is a prime.

It is a super-2 number, since 2×83504331² = 13945946591515122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 83504295 and 83504304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83504321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266631 + ... + 266943.

It is an arithmetic number, because the mean of its divisors is an integer number (3989370).

Almost surely, 2^83504331 is an apocalyptic number.

83504331 is a deficient number, since it is larger than the sum of its proper divisors (44155509).

83504331 is a wasteful number, since it uses less digits than its factorization.

83504331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 83504331 is about 9138.0704199519. The cubic root of 83504331 is about 437.0887886937.

Adding to 83504331 its reverse (13340538), we get a palindrome (96844869).

The spelling of 83504331 in words is "eighty-three million, five hundred four thousand, three hundred thirty-one".