2657091 has 8 divisors (see below), whose sum is σ = 3577600. Its totient is φ = 1753992.

The previous prime is 2657077. The next prime is 2657101. The reversal of 2657091 is 1907562.

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

It is not a de Polignac number, because 2657091 - 2⁵ = 2657059 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 (2657071) 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, 3991 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (447200).

2^2657091 is an apocalyptic number.

2657091 is a deficient number, since it is larger than the sum of its proper divisors (920509).

2657091 is a wasteful number, since it uses less digits than its factorization.

2657091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2657091 is about 1630.0585879041. The cubic root of 2657091 is about 138.5060708847.

The spelling of 2657091 in words is "two million, six hundred fifty-seven thousand, ninety-one".