83747073 has 4 divisors (see below), whose sum is σ = 111662768. Its totient is φ = 55831380.

The previous prime is 83747063. The next prime is 83747107. The reversal of 83747073 is 37074738.

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 not a de Polignac number, because 83747073 - 2⁴ = 83747057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83747023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13957843 + ... + 13957848.

It is an arithmetic number, because the mean of its divisors is an integer number (27915692).

Almost surely, 2^83747073 is an apocalyptic number.

It is an amenable number.

83747073 is a deficient number, since it is larger than the sum of its proper divisors (27915695).

83747073 is a wasteful number, since it uses less digits than its factorization.

83747073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915694.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 83747073 is about 9151.3426883709. The cubic root of 83747073 is about 437.5119091180.

The spelling of 83747073 in words is "eighty-three million, seven hundred forty-seven thousand, seventy-three".