2684474657 has 4 divisors (see below), whose sum is σ = 2711053716. Its totient is φ = 2657895600.

The previous prime is 2684474651. The next prime is 2684474671. The reversal of 2684474657 is 7564744862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1918790416 + 765684241 = 43804^2 + 27671^2 .

It is a cyclic number.

It is not a de Polignac number, because 2684474657 - 2²⁴ = 2667697441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2684474599 and 2684474608.

It is not an unprimeable number, because it can be changed into a prime (2684474651) 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, 13289378 + ... + 13289579.

It is an arithmetic number, because the mean of its divisors is an integer number (677763429).

Almost surely, 2^2684474657 is an apocalyptic number.

It is an amenable number.

2684474657 is a deficient number, since it is larger than the sum of its proper divisors (26579059).

2684474657 is a wasteful number, since it uses less digits than its factorization.

2684474657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26579058.

The product of its digits is 9031680, while the sum is 53.

The square root of 2684474657 is about 51811.9161680014. The cubic root of 2684474657 is about 1389.8025454905.

The spelling of 2684474657 in words is "two billion, six hundred eighty-four million, four hundred seventy-four thousand, six hundred fifty-seven".