83331749 has 4 divisors (see below), whose sum is σ = 83664000. Its totient is φ = 82999500.

The previous prime is 83331713. The next prime is 83331769. The reversal of 83331749 is 94713338.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94713338 = 2 ⋅47356669.

It is a cyclic number.

It is not a de Polignac number, because 83331749 - 2¹² = 83327653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83331769) 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, 165749 + ... + 166250.

It is an arithmetic number, because the mean of its divisors is an integer number (20916000).

Almost surely, 2^83331749 is an apocalyptic number.

It is an amenable number.

83331749 is a deficient number, since it is larger than the sum of its proper divisors (332251).

83331749 is a wasteful number, since it uses less digits than its factorization.

83331749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332250.

The product of its digits is 54432, while the sum is 38.

The square root of 83331749 is about 9128.6225138298. The cubic root of 83331749 is about 436.7874642653.

The spelling of 83331749 in words is "eighty-three million, three hundred thirty-one thousand, seven hundred forty-nine".