2979505 has 8 divisors (see below), whose sum is σ = 3785832. Its totient is φ = 2243328.

The previous prime is 2979497. The next prime is 2979541. The reversal of 2979505 is 5059792.

It can be written as a sum of positive squares in 4 ways, for example, as 237169 + 2742336 = 487^2 + 1656^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2979505 - 2³ = 2979497 is a prime.

2979505 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17442 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (473229).

2^2979505 is an apocalyptic number.

It is an amenable number.

2979505 is a deficient number, since it is larger than the sum of its proper divisors (806327).

2979505 is a wasteful number, since it uses less digits than its factorization.

2979505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35075.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 2979505 is about 1726.1242713084. The cubic root of 2979505 is about 143.8957739887.

The spelling of 2979505 in words is "two million, nine hundred seventy-nine thousand, five hundred five".