7936661 has 4 divisors (see below), whose sum is σ = 8354400. Its totient is φ = 7518924.

The previous prime is 7936631. The next prime is 7936667. The reversal of 7936661 is 1666397.

7936661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7936661 - 2⁶ = 7936597 is a prime.

It is an Ulam number.

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 (7936667) 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, 208841 + ... + 208878.

It is an arithmetic number, because the mean of its divisors is an integer number (2088600).

Almost surely, 2^7936661 is an apocalyptic number.

It is an amenable number.

7936661 is a deficient number, since it is larger than the sum of its proper divisors (417739).

7936661 is a wasteful number, since it uses less digits than its factorization.

7936661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417738.

The product of its digits is 40824, while the sum is 38.

The square root of 7936661 is about 2817.2080150390. The cubic root of 7936661 is about 199.4707758442.

The spelling of 7936661 in words is "seven million, nine hundred thirty-six thousand, six hundred sixty-one".