2879447685 has 8 divisors (see below), whose sum is σ = 4607116320. Its totient is φ = 1535705424.

The previous prime is 2879447647. The next prime is 2879447687. The reversal of 2879447685 is 5867449782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2879447685 - 2¹¹ = 2879445637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879447687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95981575 + ... + 95981604.

It is an arithmetic number, because the mean of its divisors is an integer number (575889540).

Almost surely, 2^2879447685 is an apocalyptic number.

It is an amenable number.

2879447685 is a deficient number, since it is larger than the sum of its proper divisors (1727668635).

2879447685 is a wasteful number, since it uses less digits than its factorization.

2879447685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191963187.

The product of its digits is 27095040, while the sum is 60.

The square root of 2879447685 is about 53660.4853220692. The cubic root of 2879447685 is about 1422.6663657256. Note that the first 3 decimals are identical.

The spelling of 2879447685 in words is "two billion, eight hundred seventy-nine million, four hundred forty-seven thousand, six hundred eighty-five".