83028749 has 4 divisors (see below), whose sum is σ = 84198240. Its totient is φ = 81859260.

The previous prime is 83028739. The next prime is 83028761. The reversal of 83028749 is 94782038.

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.

It is a cyclic number.

It is not a de Polignac number, because 83028749 - 2¹² = 83024653 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 (83028719) 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, 584639 + ... + 584780.

It is an arithmetic number, because the mean of its divisors is an integer number (21049560).

Almost surely, 2^83028749 is an apocalyptic number.

It is an amenable number.

83028749 is a deficient number, since it is larger than the sum of its proper divisors (1169491).

83028749 is a wasteful number, since it uses less digits than its factorization.

83028749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169490.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 83028749 is about 9112.0112488956. The cubic root of 83028749 is about 436.2574248537.

The spelling of 83028749 in words is "eighty-three million, twenty-eight thousand, seven hundred forty-nine".