1309484697 has 4 divisors (see below), whose sum is σ = 1745979600. Its totient is φ = 872989796.

The previous prime is 1309484669. The next prime is 1309484707. The reversal of 1309484697 is 7964849031.

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 1309484697 - 2¹⁵ = 1309451929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1309484597) 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, 218247447 + ... + 218247452.

It is an arithmetic number, because the mean of its divisors is an integer number (436494900).

Almost surely, 2^1309484697 is an apocalyptic number.

It is an amenable number.

1309484697 is a deficient number, since it is larger than the sum of its proper divisors (436494903).

1309484697 is an equidigital number, since it uses as much as digits as its factorization.

1309484697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436494902.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 1309484697 is about 36186.8028015739. The cubic root of 1309484697 is about 1094.0406927280.

The spelling of 1309484697 in words is "one billion, three hundred nine million, four hundred eighty-four thousand, six hundred ninety-seven".