7948903 has 4 divisors (see below), whose sum is σ = 7982128. Its totient is φ = 7915680.

The previous prime is 7948883. The next prime is 7948907. The reversal of 7948903 is 3098497.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7948903 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 (7948907) 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 3 ways as a sum of consecutive naturals, for example, 16251 + ... + 16732.

It is an arithmetic number, because the mean of its divisors is an integer number (1995532).

Almost surely, 2^7948903 is an apocalyptic number.

7948903 is a deficient number, since it is larger than the sum of its proper divisors (33225).

7948903 is a wasteful number, since it uses less digits than its factorization.

7948903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33224.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7948903 is about 2819.3798963602. The cubic root of 7948903 is about 199.5732818724.

The spelling of 7948903 in words is "seven million, nine hundred forty-eight thousand, nine hundred three".