7972361 has 4 divisors (see below), whose sum is σ = 8247300. Its totient is φ = 7697424.

The previous prime is 7972357. The next prime is 7972373. The reversal of 7972361 is 1632797.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3728761 + 4243600 = 1931^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 7972361 - 2² = 7972357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7972351) 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 3 ways as a sum of consecutive naturals, for example, 137426 + ... + 137483.

It is an arithmetic number, because the mean of its divisors is an integer number (2061825).

Almost surely, 2^7972361 is an apocalyptic number.

It is an amenable number.

7972361 is a deficient number, since it is larger than the sum of its proper divisors (274939).

7972361 is a wasteful number, since it uses less digits than its factorization.

7972361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274938.

The product of its digits is 15876, while the sum is 35.

The square root of 7972361 is about 2823.5369662889. The cubic root of 7972361 is about 199.7694092417.

The spelling of 7972361 in words is "seven million, nine hundred seventy-two thousand, three hundred sixty-one".