2684297979 has 48 divisors (see below), whose sum is σ = 4494372480. Its totient is φ = 1526705280.

The previous prime is 2684297969. The next prime is 2684297999. The reversal of 2684297979 is 9797924862.

It is not a de Polignac number, because 2684297979 - 2⁵ = 2684297947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2684297969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194599 + ... + 207935.

It is an arithmetic number, because the mean of its divisors is an integer number (93632760).

Almost surely, 2^2684297979 is an apocalyptic number.

2684297979 is a deficient number, since it is larger than the sum of its proper divisors (1810074501).

2684297979 is a wasteful number, since it uses less digits than its factorization.

2684297979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480 (or 13477 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 2684297979 is about 51810.2111460666. The cubic root of 2684297979 is about 1389.7720549908.

The spelling of 2684297979 in words is "two billion, six hundred eighty-four million, two hundred ninety-seven thousand, nine hundred seventy-nine".