7843961 has 8 divisors (see below), whose sum is σ = 8130048. Its totient is φ = 7560000.

The previous prime is 7843951. The next prime is 7843981. The reversal of 7843961 is 1693487.

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 7843961 - 2¹⁴ = 7827577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7843951) 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, 12116 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (1016256).

Almost surely, 2^7843961 is an apocalyptic number.

It is an amenable number.

7843961 is a deficient number, since it is larger than the sum of its proper divisors (286087).

7843961 is a wasteful number, since it uses less digits than its factorization.

7843961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its digits is 36288, while the sum is 38.

The square root of 7843961 is about 2800.7072321112. The cubic root of 7843961 is about 198.6911279556.

The spelling of 7843961 in words is "seven million, eight hundred forty-three thousand, nine hundred sixty-one".