7997061 has 4 divisors (see below), whose sum is σ = 10662752. Its totient is φ = 5331372.

The previous prime is 7997057. The next prime is 7997071. The reversal of 7997061 is 1607997.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1607997 = 3 ⋅535999.

It is not a de Polignac number, because 7997061 - 2² = 7997057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332841 + ... + 1332846.

It is an arithmetic number, because the mean of its divisors is an integer number (2665688).

Almost surely, 2^7997061 is an apocalyptic number.

It is an amenable number.

7997061 is a deficient number, since it is larger than the sum of its proper divisors (2665691).

7997061 is a wasteful number, since it uses less digits than its factorization.

7997061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665690.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 7997061 is about 2827.9075303128. The cubic root of 7997061 is about 199.9755053335.

The spelling of 7997061 in words is "seven million, nine hundred ninety-seven thousand, sixty-one".