5309497447 has 4 divisors (see below), whose sum is σ = 5452997416. Its totient is φ = 5165997480.

The previous prime is 5309497387. The next prime is 5309497481. The reversal of 5309497447 is 7447949035.

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 5309497447 - 2²⁷ = 5175279719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5309497394 and 5309497403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5309495447) 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, 71749929 + ... + 71750002.

It is an arithmetic number, because the mean of its divisors is an integer number (1363249354).

Almost surely, 2^5309497447 is an apocalyptic number.

5309497447 is a deficient number, since it is larger than the sum of its proper divisors (143499969).

5309497447 is a wasteful number, since it uses less digits than its factorization.

5309497447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143499968.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The square root of 5309497447 is about 72866.2984307560. The cubic root of 5309497447 is about 1744.5542217002.

The spelling of 5309497447 in words is "five billion, three hundred nine million, four hundred ninety-seven thousand, four hundred forty-seven".