7439966 has 4 divisors (see below), whose sum is σ = 11159952. Its totient is φ = 3719982.

The previous prime is 7439953. The next prime is 7439977. The reversal of 7439966 is 6699347.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1859990 + ... + 1859993.

It is an arithmetic number, because the mean of its divisors is an integer number (2789988).

Almost surely, 2^7439966 is an apocalyptic number.

7439966 is a deficient number, since it is larger than the sum of its proper divisors (3719986).

7439966 is a wasteful number, since it uses less digits than its factorization.

7439966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719985.

The product of its digits is 244944, while the sum is 44.

The square root of 7439966 is about 2727.6301068877. The cubic root of 7439966 is about 195.2197041551.

The spelling of 7439966 in words is "seven million, four hundred thirty-nine thousand, nine hundred sixty-six".