83748739 has 4 divisors (see below), whose sum is σ = 84896056. Its totient is φ = 82601424.

The previous prime is 83748737. The next prime is 83748757. The reversal of 83748739 is 93784738.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83748739 - 2¹ = 83748737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83748692 and 83748701.

It is not an unprimeable number, because it can be changed into a prime (83748737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573549 + ... + 573694.

It is an arithmetic number, because the mean of its divisors is an integer number (21224014).

Almost surely, 2^83748739 is an apocalyptic number.

83748739 is a deficient number, since it is larger than the sum of its proper divisors (1147317).

83748739 is a wasteful number, since it uses less digits than its factorization.

83748739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147316.

The product of its digits is 1016064, while the sum is 49.

The square root of 83748739 is about 9151.4337128124. The cubic root of 83748739 is about 437.5148102741.

The spelling of 83748739 in words is "eighty-three million, seven hundred forty-eight thousand, seven hundred thirty-nine".