7920726 has 16 divisors (see below), whose sum is σ = 17281728. Its totient is φ = 2400200.

The previous prime is 7920713. The next prime is 7920727. The reversal of 7920726 is 6270297.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920727) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 59940 + ... + 60071.

It is an arithmetic number, because the mean of its divisors is an integer number (1080108).

Almost surely, 2^7920726 is an apocalyptic number.

7920726 is an abundant number, since it is smaller than the sum of its proper divisors (9361002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7920726 is a wasteful number, since it uses less digits than its factorization.

7920726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120027.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 7920726 is about 2814.3784393716. The cubic root of 7920726 is about 199.3371891689.

It can be divided in two parts, 7920 and 726, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 7920726 in words is "seven million, nine hundred twenty thousand, seven hundred twenty-six".