7940726 has 4 divisors (see below), whose sum is σ = 11911092. Its totient is φ = 3970362.

The previous prime is 7940719. The next prime is 7940747. The reversal of 7940726 is 6270497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6270497 = 457 ⋅13721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985180 + ... + 1985183.

It is an arithmetic number, because the mean of its divisors is an integer number (2977773).

Almost surely, 2^7940726 is an apocalyptic number.

7940726 is a deficient number, since it is larger than the sum of its proper divisors (3970366).

7940726 is a wasteful number, since it uses less digits than its factorization.

7940726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970365.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 7940726 is about 2817.9293816560. The cubic root of 7940726 is about 199.5048250205.

The spelling of 7940726 in words is "seven million, nine hundred forty thousand, seven hundred twenty-six".