84433131 has 16 divisors (see below), whose sum is σ = 131670400. Its totient is φ = 53325864.

The previous prime is 84433087. The next prime is 84433159. The reversal of 84433131 is 13133448.

It is not a de Polignac number, because 84433131 - 2⁷ = 84433003 is a prime.

It is a super-2 number, since 2×84433131² = 14257907220926322, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84433095 and 84433104.

It is not an unprimeable number, because it can be changed into a prime (84433171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81781 + ... + 82806.

It is an arithmetic number, because the mean of its divisors is an integer number (8229400).

Almost surely, 2^84433131 is an apocalyptic number.

84433131 is a deficient number, since it is larger than the sum of its proper divisors (47237269).

84433131 is a wasteful number, since it uses less digits than its factorization.

84433131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164615 (or 164609 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 84433131 is about 9188.7502414637. The cubic root of 84433131 is about 438.7033641716.

Adding to 84433131 its reverse (13133448), we get a palindrome (97566579).

The spelling of 84433131 in words is "eighty-four million, four hundred thirty-three thousand, one hundred thirty-one".