83430749 has 2 divisors, whose sum is σ = 83430750. Its totient is φ = 83430748.

The previous prime is 83430733. The next prime is 83430761. The reversal of 83430749 is 94703438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59567524 + 23863225 = 7718^2 + 4885^2 .

It is a cyclic number.

It is not a de Polignac number, because 83430749 - 2⁴ = 83430733 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_4857806 and since 83430749 and 4857806 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83430769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41715374 + 41715375.

It is an arithmetic number, because the mean of its divisors is an integer number (41715375).

Almost surely, 2^83430749 is an apocalyptic number.

It is an amenable number.

83430749 is a deficient number, since it is larger than the sum of its proper divisors (1).

83430749 is an equidigital number, since it uses as much as digits as its factorization.

83430749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 83430749 is about 9134.0434091371. The cubic root of 83430749 is about 436.9603669370.

The spelling of 83430749 in words is "eighty-three million, four hundred thirty thousand, seven hundred forty-nine".