2640677 has 8 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 2309040.

The previous prime is 2640643. The next prime is 2640683. The reversal of 2640677 is 7760462.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640577) 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, 5099 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (374220).

2^2640677 is an apocalyptic number.

It is an amenable number.

2640677 is a deficient number, since it is larger than the sum of its proper divisors (353083).

2640677 is a wasteful number, since it uses less digits than its factorization.

2640677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2640677 is about 1625.0159999212. The cubic root of 2640677 is about 138.2202776221.

The spelling of 2640677 in words is "two million, six hundred forty thousand, six hundred seventy-seven".