2642679 has 16 divisors (see below), whose sum is σ = 4216800. Its totient is φ = 1626048.

The previous prime is 2642639. The next prime is 2642693. The reversal of 2642679 is 9762462.

It is a happy number.

2642679 is a `hidden beast` number, since 2 + 642 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 2642679 - 2¹³ = 2634487 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642609) 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, 3414 + ... + 4115.

It is an arithmetic number, because the mean of its divisors is an integer number (263550).

2^2642679 is an apocalyptic number.

2642679 is a deficient number, since it is larger than the sum of its proper divisors (1574121).

2642679 is a wasteful number, since it uses less digits than its factorization.

2642679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551 (or 7545 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2642679 is about 1625.6318771481. The cubic root of 2642679 is about 138.2551988558.

It can be divided in two parts, 2642 and 679, that added together give a triangular number (3321 = T₈₁).

The spelling of 2642679 in words is "two million, six hundred forty-two thousand, six hundred seventy-nine".