3921479503 has 4 divisors (see below), whose sum is σ = 3968726328. Its totient is φ = 3874232680.

The previous prime is 3921479501. The next prime is 3921479531. The reversal of 3921479503 is 3059741293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3059741293 = 7 ⋅437105899.

It is a cyclic number.

It is not a de Polignac number, because 3921479503 - 2¹ = 3921479501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3921479503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921479501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23623288 + ... + 23623453.

It is an arithmetic number, because the mean of its divisors is an integer number (992181582).

Almost surely, 2^3921479503 is an apocalyptic number.

3921479503 is a deficient number, since it is larger than the sum of its proper divisors (47246825).

3921479503 is an equidigital number, since it uses as much as digits as its factorization.

3921479503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47246824.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 3921479503 is about 62621.7175027961. The cubic root of 3921479503 is about 1576.9453751841.

The spelling of 3921479503 in words is "three billion, nine hundred twenty-one million, four hundred seventy-nine thousand, five hundred three".