2670657 has 8 divisors (see below), whose sum is σ = 3884640. Its totient is φ = 1618560.

The previous prime is 2670653. The next prime is 2670667. The reversal of 2670657 is 7560762.

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

It is not a de Polignac number, because 2670657 - 2² = 2670653 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 80929 = 2670657 / (2 + 6 + 7 + 0 + 6 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (2670653) 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, 40432 + ... + 40497.

It is an arithmetic number, because the mean of its divisors is an integer number (485580).

2^2670657 is an apocalyptic number.

It is an amenable number.

2670657 is a deficient number, since it is larger than the sum of its proper divisors (1213983).

2670657 is a wasteful number, since it uses less digits than its factorization.

2670657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80943.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 2670657 is about 1634.2144902062. The cubic root of 2670657 is about 138.7413889632.

The spelling of 2670657 in words is "two million, six hundred seventy thousand, six hundred fifty-seven".