83823431 has 4 divisors (see below), whose sum is σ = 87467952. Its totient is φ = 80178912.

The previous prime is 83823401. The next prime is 83823437. The reversal of 83823431 is 13432838.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83823431 - 2²⁶ = 16714567 is a prime.

It is a super-2 number, since 2×83823431² = 14052735169223522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83823437) 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, 1822226 + ... + 1822271.

It is an arithmetic number, because the mean of its divisors is an integer number (21866988).

Almost surely, 2^83823431 is an apocalyptic number.

83823431 is a deficient number, since it is larger than the sum of its proper divisors (3644521).

83823431 is a wasteful number, since it uses less digits than its factorization.

83823431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644520.

The product of its digits is 13824, while the sum is 32.

The square root of 83823431 is about 9155.5136939442. The cubic root of 83823431 is about 437.6448386839.

The spelling of 83823431 in words is "eighty-three million, eight hundred twenty-three thousand, four hundred thirty-one".