7479704809 has 4 divisors (see below), whose sum is σ = 7479887440. Its totient is φ = 7479522180.

The previous prime is 7479704807. The next prime is 7479704839. The reversal of 7479704809 is 9084079747.

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 7479704809 - 2¹ = 7479704807 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 7479704809.

It is not an unprimeable number, because it can be changed into a prime (7479704807) 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, 1702 + ... + 122320.

It is an arithmetic number, because the mean of its divisors is an integer number (1869971860).

Almost surely, 2^7479704809 is an apocalyptic number.

It is an amenable number.

7479704809 is a deficient number, since it is larger than the sum of its proper divisors (182631).

7479704809 is a wasteful number, since it uses less digits than its factorization.

7479704809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182630.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 7479704809 is about 86485.2866619519. The cubic root of 7479704809 is about 1955.6666036573. Note that the first 4 decimals are identical.

The spelling of 7479704809 in words is "seven billion, four hundred seventy-nine million, seven hundred four thousand, eight hundred nine".