2699942447 has 4 divisors (see below), whose sum is σ = 2700085080. Its totient is φ = 2699799816.

The previous prime is 2699942353. The next prime is 2699942459. The reversal of 2699942447 is 7442499962.

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 2699942447 - 2¹⁶ = 2699876911 is a prime.

It is a super-2 number, since 2×2699942447² = 14579378434224695618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2699942392 and 2699942401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2699942477) 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, 37613 + ... + 82550.

It is an arithmetic number, because the mean of its divisors is an integer number (675021270).

Almost surely, 2^2699942447 is an apocalyptic number.

2699942447 is a deficient number, since it is larger than the sum of its proper divisors (142633).

2699942447 is a wasteful number, since it uses less digits than its factorization.

2699942447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142632.

The product of its digits is 7838208, while the sum is 56.

The square root of 2699942447 is about 51960.9704201144. The cubic root of 2699942447 is about 1392.4667560372.

The spelling of 2699942447 in words is "two billion, six hundred ninety-nine million, nine hundred forty-two thousand, four hundred forty-seven".