2879609857 has 2 divisors, whose sum is σ = 2879609858. Its totient is φ = 2879609856.

The previous prime is 2879609827. The next prime is 2879609869. The reversal of 2879609857 is 7589069782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477556721 + 1402053136 = 38439^2 + 37444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2879609857 - 2²⁷ = 2745392129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2879609795 and 2879609804.

It is not a weakly prime, because it can be changed into another prime (2879609827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439804928 + 1439804929.

It is an arithmetic number, because the mean of its divisors is an integer number (1439804929).

Almost surely, 2^2879609857 is an apocalyptic number.

It is an amenable number.

2879609857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2879609857 is an equidigital number, since it uses as much as digits as its factorization.

2879609857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The square root of 2879609857 is about 53661.9963940963. The cubic root of 2879609857 is about 1422.6930736622.

The spelling of 2879609857 in words is "two billion, eight hundred seventy-nine million, six hundred nine thousand, eight hundred fifty-seven".