2679945 has 16 divisors (see below), whose sum is σ = 4370112. Its totient is φ = 1401920.

The previous prime is 2679899. The next prime is 2679949. The reversal of 2679945 is 5499762.

It is not a de Polignac number, because 2679945 - 2⁹ = 2679433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2679897 and 2679906.

It is not an unprimeable number, because it can be changed into a prime (2679949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891 + ... + 2480.

It is an arithmetic number, because the mean of its divisors is an integer number (273132).

2^2679945 is an apocalyptic number.

It is an amenable number.

2679945 is a deficient number, since it is larger than the sum of its proper divisors (1690167).

2679945 is a wasteful number, since it uses less digits than its factorization.

2679945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its digits is 136080, while the sum is 42.

The square root of 2679945 is about 1637.0537559897. The cubic root of 2679945 is about 138.9020409471.

The spelling of 2679945 in words is "two million, six hundred seventy-nine thousand, nine hundred forty-five".