2978115 has 32 divisors (see below), whose sum is σ = 5515776. Its totient is φ = 1344000.

The previous prime is 2978113. The next prime is 2978119. The reversal of 2978115 is 5118792.

2978115 = T₂₅₆ + T₂₅₇ + ... + T₃₂₅.

2978115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2978115 - 2¹ = 2978113 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11740 + ... + 11990.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^2978115 is an apocalyptic number.

2978115 is a deficient number, since it is larger than the sum of its proper divisors (2537661).

2978115 is a wasteful number, since it uses less digits than its factorization.

2978115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379.

The product of its digits is 5040, while the sum is 33.

The square root of 2978115 is about 1725.7215882059. The cubic root of 2978115 is about 143.8733937345.

The spelling of 2978115 in words is "two million, nine hundred seventy-eight thousand, one hundred fifteen".