7640943 has 8 divisors (see below), whose sum is σ = 10237056. Its totient is φ = 5069400.

The previous prime is 7640933. The next prime is 7640987. The reversal of 7640943 is 3490467.

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

It is not a de Polignac number, because 7640943 - 2⁶ = 7640879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640903) 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, 5403 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (1279632).

Almost surely, 2^7640943 is an apocalyptic number.

7640943 is a deficient number, since it is larger than the sum of its proper divisors (2596113).

7640943 is a wasteful number, since it uses less digits than its factorization.

7640943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 7640943 is about 2764.2255696668. The cubic root of 7640943 is about 196.9619430552.

The spelling of 7640943 in words is "seven million, six hundred forty thousand, nine hundred forty-three".