7921063 has 4 divisors (see below), whose sum is σ = 7930048. Its totient is φ = 7912080.

The previous prime is 7921061. The next prime is 7921087. The reversal of 7921063 is 3601297.

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

It is a cyclic number.

It is not a de Polignac number, because 7921063 - 2¹ = 7921061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7921061) 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, 3006 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (1982512).

Almost surely, 2^7921063 is an apocalyptic number.

7921063 is a deficient number, since it is larger than the sum of its proper divisors (8985).

7921063 is an equidigital number, since it uses as much as digits as its factorization.

7921063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 7921063 is about 2814.4383098586. The cubic root of 7921063 is about 199.3400161690.

The spelling of 7921063 in words is "seven million, nine hundred twenty-one thousand, sixty-three".