7973539 has 8 divisors (see below), whose sum is σ = 9201920. Its totient is φ = 6767496.

The previous prime is 7973519. The next prime is 7973543. The reversal of 7973539 is 9353797.

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 7973539 - 2⁷ = 7973411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7973495 and 7973504.

It is not an unprimeable number, because it can be changed into a prime (7973509) 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 7 ways as a sum of consecutive naturals, for example, 4809 + ... + 6250.

It is an arithmetic number, because the mean of its divisors is an integer number (1150240).

Almost surely, 2^7973539 is an apocalyptic number.

7973539 is a deficient number, since it is larger than the sum of its proper divisors (1228381).

7973539 is a wasteful number, since it uses less digits than its factorization.

7973539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11169.

The product of its digits is 178605, while the sum is 43.

The square root of 7973539 is about 2823.7455621922. The cubic root of 7973539 is about 199.7792480993.

The spelling of 7973539 in words is "seven million, nine hundred seventy-three thousand, five hundred thirty-nine".