7901617 has 4 divisors (see below), whose sum is σ = 8366436. Its totient is φ = 7436800.

The previous prime is 7901603. The next prime is 7901669. The reversal of 7901617 is 7161097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7161097 = 17 ⋅421241.

It can be written as a sum of positive squares in 2 ways, for example, as 7134241 + 767376 = 2671^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 7901617 - 2¹⁵ = 7868849 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7902617) 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, 232384 + ... + 232417.

It is an arithmetic number, because the mean of its divisors is an integer number (2091609).

Almost surely, 2^7901617 is an apocalyptic number.

It is an amenable number.

7901617 is a deficient number, since it is larger than the sum of its proper divisors (464819).

7901617 is a wasteful number, since it uses less digits than its factorization.

7901617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464818.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 7901617 is about 2810.9815011842. The cubic root of 7901617 is about 199.1767576765.

The spelling of 7901617 in words is "seven million, nine hundred one thousand, six hundred seventeen".