6947309849 has 4 divisors (see below), whose sum is σ = 7035250560. Its totient is φ = 6859369140.

The previous prime is 6947309833. The next prime is 6947309851. The reversal of 6947309849 is 9489037496.

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 6947309849 - 2⁴ = 6947309833 is a prime.

It is a super-2 number, since 2×6947309849² = 96530228276024805602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6947309819) 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, 43970237 + ... + 43970394.

It is an arithmetic number, because the mean of its divisors is an integer number (1758812640).

Almost surely, 2^6947309849 is an apocalyptic number.

It is an amenable number.

6947309849 is a deficient number, since it is larger than the sum of its proper divisors (87940711).

6947309849 is an equidigital number, since it uses as much as digits as its factorization.

6947309849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87940710.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The square root of 6947309849 is about 83350.5239875551. The cubic root of 6947309849 is about 1908.1194403918.

The spelling of 6947309849 in words is "six billion, nine hundred forty-seven million, three hundred nine thousand, eight hundred forty-nine".