84231533 has 2 divisors, whose sum is σ = 84231534. Its totient is φ = 84231532.

The previous prime is 84231523. The next prime is 84231547. The reversal of 84231533 is 33513248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45131524 + 39100009 = 6718^2 + 6253^2 .

It is a cyclic number.

It is not a de Polignac number, because 84231533 - 2⁴ = 84231517 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84231496 and 84231505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84231523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42115766 + 42115767.

It is an arithmetic number, because the mean of its divisors is an integer number (42115767).

Almost surely, 2^84231533 is an apocalyptic number.

It is an amenable number.

84231533 is a deficient number, since it is larger than the sum of its proper divisors (1).

84231533 is an equidigital number, since it uses as much as digits as its factorization.

84231533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 84231533 is about 9177.7738586217. The cubic root of 84231533 is about 438.3539270766.

The spelling of 84231533 in words is "eighty-four million, two hundred thirty-one thousand, five hundred thirty-three".