83940749 has 8 divisors (see below), whose sum is σ = 85768128. Its totient is φ = 82130400.

The previous prime is 83940737. The next prime is 83940757. The reversal of 83940749 is 94704938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83940749 - 2²⁴ = 67163533 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 (83940709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5969 + ... + 14265.

It is an arithmetic number, because the mean of its divisors is an integer number (10721016).

Almost surely, 2^83940749 is an apocalyptic number.

It is an amenable number.

83940749 is a deficient number, since it is larger than the sum of its proper divisors (1827379).

83940749 is a wasteful number, since it uses less digits than its factorization.

83940749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8515.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 83940749 is about 9161.9184126470. The cubic root of 83940749 is about 437.8489171933.

The spelling of 83940749 in words is "eighty-three million, nine hundred forty thousand, seven hundred forty-nine".