7973561 has 8 divisors (see below), whose sum is σ = 8545824. Its totient is φ = 7412800.

The previous prime is 7973543. The next prime is 7973591. The reversal of 7973561 is 1653797.

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 7973561 - 2¹⁴ = 7957177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7973591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 4236.

It is an arithmetic number, because the mean of its divisors is an integer number (1068228).

Almost surely, 2^7973561 is an apocalyptic number.

It is an amenable number.

7973561 is a deficient number, since it is larger than the sum of its proper divisors (572263).

7973561 is a wasteful number, since it uses less digits than its factorization.

7973561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751.

The product of its digits is 39690, while the sum is 38.

The square root of 7973561 is about 2823.7494577246. The cubic root of 7973561 is about 199.7794318379.

The spelling of 7973561 in words is "seven million, nine hundred seventy-three thousand, five hundred sixty-one".