2979555 has 8 divisors (see below), whose sum is σ = 4767312. Its totient is φ = 1589088.

The previous prime is 2979551. The next prime is 2979563. The reversal of 2979555 is 5559792.

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

It is not a de Polignac number, because 2979555 - 2² = 2979551 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2979555 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2979551) 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, 99304 + ... + 99333.

It is an arithmetic number, because the mean of its divisors is an integer number (595914).

2^2979555 is an apocalyptic number.

2979555 is a deficient number, since it is larger than the sum of its proper divisors (1787757).

2979555 is a wasteful number, since it uses less digits than its factorization.

2979555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198645.

The product of its digits is 141750, while the sum is 42.

The square root of 2979555 is about 1726.1387545618. The cubic root of 2979555 is about 143.8965789041.

The spelling of 2979555 in words is "two million, nine hundred seventy-nine thousand, five hundred fifty-five".