6948479749 has 4 divisors (see below), whose sum is σ = 6952191436. Its totient is φ = 6944768064.

The previous prime is 6948479731. The next prime is 6948479767. The reversal of 6948479749 is 9479748496.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6948479731) and next prime (6948479767).

It can be written as a sum of positive squares in 2 ways, for example, as 1260605025 + 5687874724 = 35505^2 + 75418^2 .

It is a cyclic number.

It is not a de Polignac number, because 6948479749 - 2¹⁹ = 6947955461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6948479249) 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, 1853034 + ... + 1856779.

It is an arithmetic number, because the mean of its divisors is an integer number (1738047859).

Almost surely, 2^6948479749 is an apocalyptic number.

It is an amenable number.

6948479749 is a deficient number, since it is larger than the sum of its proper divisors (3711687).

6948479749 is a wasteful number, since it uses less digits than its factorization.

6948479749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711686.

The product of its digits is 109734912, while the sum is 67.

The square root of 6948479749 is about 83357.5416444127. The cubic root of 6948479749 is about 1908.2265410149.

The spelling of 6948479749 in words is "six billion, nine hundred forty-eight million, four hundred seventy-nine thousand, seven hundred forty-nine".