7920373 has 4 divisors (see below), whose sum is σ = 8069868. Its totient is φ = 7770880.

The previous prime is 7920371. The next prime is 7920389. The reversal of 7920373 is 3730297.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6340324 + 1580049 = 2518^2 + 1257^2 .

It is a cyclic number.

It is not a de Polignac number, because 7920373 - 2¹ = 7920371 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

7920373 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74668 + ... + 74773.

It is an arithmetic number, because the mean of its divisors is an integer number (2017467).

Almost surely, 2^7920373 is an apocalyptic number.

It is an amenable number.

7920373 is a deficient number, since it is larger than the sum of its proper divisors (149495).

7920373 is a wasteful number, since it uses less digits than its factorization.

7920373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149494.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 7920373 is about 2814.3157250031. The cubic root of 7920373 is about 199.3342278632.

The spelling of 7920373 in words is "seven million, nine hundred twenty thousand, three hundred seventy-three".