7643361 has 16 divisors (see below), whose sum is σ = 11302848. Its totient is φ = 4555200.

The previous prime is 7643359. The next prime is 7643371. The reversal of 7643361 is 1633467.

It is not a de Polignac number, because 7643361 - 2¹ = 7643359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7643351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (706428).

Almost surely, 2^7643361 is an apocalyptic number.

It is an amenable number.

7643361 is a deficient number, since it is larger than the sum of its proper divisors (3659487).

7643361 is a wasteful number, since it uses less digits than its factorization.

7643361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its digits is 9072, while the sum is 30.

The square root of 7643361 is about 2764.6629089276. The cubic root of 7643361 is about 196.9827172690.

The spelling of 7643361 in words is "seven million, six hundred forty-three thousand, three hundred sixty-one".