83661733 has 2 divisors, whose sum is σ = 83661734. Its totient is φ = 83661732.

The previous prime is 83661727. The next prime is 83661779. The reversal of 83661733 is 33716638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48413764 + 35247969 = 6958^2 + 5937^2 .

It is a cyclic number.

It is not a de Polignac number, because 83661733 - 2¹³ = 83653541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83661692 and 83661701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83665733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41830866 + 41830867.

It is an arithmetic number, because the mean of its divisors is an integer number (41830867).

Almost surely, 2^83661733 is an apocalyptic number.

It is an amenable number.

83661733 is a deficient number, since it is larger than the sum of its proper divisors (1).

83661733 is an equidigital number, since it uses as much as digits as its factorization.

83661733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 83661733 is about 9146.6787961533. The cubic root of 83661733 is about 437.3632473811.

The spelling of 83661733 in words is "eighty-three million, six hundred sixty-one thousand, seven hundred thirty-three".