2978607 has 8 divisors (see below), whose sum is σ = 3982384. Its totient is φ = 1980288.

The previous prime is 2978593. The next prime is 2978627. The reversal of 2978607 is 7068792.

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

It is not a de Polignac number, because 2978607 - 2⁶ = 2978543 is a prime.

It is a Duffinian number.

2978607 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978627) 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, 153 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (497798).

2^2978607 is an apocalyptic number.

2978607 is a deficient number, since it is larger than the sum of its proper divisors (1003777).

2978607 is a wasteful number, since it uses less digits than its factorization.

2978607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 2978607 is about 1725.8641313846. The cubic root of 2978607 is about 143.8813161745.

The spelling of 2978607 in words is "two million, nine hundred seventy-eight thousand, six hundred seven".