7972261 has 4 divisors (see below), whose sum is σ = 8697024. Its totient is φ = 7247500.

The previous prime is 7972253. The next prime is 7972271. The reversal of 7972261 is 1622797.

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 a cyclic number.

It is not a de Polignac number, because 7972261 - 2³ = 7972253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972231) 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, 362365 + ... + 362386.

It is an arithmetic number, because the mean of its divisors is an integer number (2174256).

Almost surely, 2^7972261 is an apocalyptic number.

It is an amenable number.

7972261 is a deficient number, since it is larger than the sum of its proper divisors (724763).

7972261 is a wasteful number, since it uses less digits than its factorization.

7972261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724762.

The product of its digits is 10584, while the sum is 34.

The square root of 7972261 is about 2823.5192579474. The cubic root of 7972261 is about 199.7685739799.

The spelling of 7972261 in words is "seven million, nine hundred seventy-two thousand, two hundred sixty-one".