7920501 has 4 divisors (see below), whose sum is σ = 10560672. Its totient is φ = 5280332.

The previous prime is 7920481. The next prime is 7920529. The reversal of 7920501 is 1050297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7920501 - 2²² = 3726197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920551) 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, 1320081 + ... + 1320086.

It is an arithmetic number, because the mean of its divisors is an integer number (2640168).

Almost surely, 2^7920501 is an apocalyptic number.

It is an amenable number.

7920501 is a deficient number, since it is larger than the sum of its proper divisors (2640171).

7920501 is a wasteful number, since it uses less digits than its factorization.

7920501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640170.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 7920501 is about 2814.3384657855. The cubic root of 7920501 is about 199.3353016613.

Adding to 7920501 its reverse (1050297), we get a palindrome (8970798).

The spelling of 7920501 in words is "seven million, nine hundred twenty thousand, five hundred one".