7966641 has 8 divisors (see below), whose sum is σ = 10848384. Its totient is φ = 5198000.

The previous prime is 7966633. The next prime is 7966663. The reversal of 7966641 is 1466697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7966641 - 2³ = 7966633 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7966641.

It is not an unprimeable number, because it can be changed into a prime (7966691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28110 + ... + 28391.

It is an arithmetic number, because the mean of its divisors is an integer number (1356048).

Almost surely, 2^7966641 is an apocalyptic number.

It is an amenable number.

7966641 is a deficient number, since it is larger than the sum of its proper divisors (2881743).

7966641 is a wasteful number, since it uses less digits than its factorization.

7966641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56551.

The product of its digits is 54432, while the sum is 39.

The square root of 7966641 is about 2822.5238705811. The cubic root of 7966641 is about 199.7216210389.

The spelling of 7966641 in words is "seven million, nine hundred sixty-six thousand, six hundred forty-one".