2657651 has 2 divisors, whose sum is σ = 2657652. Its totient is φ = 2657650.

The previous prime is 2657617. The next prime is 2657657. The reversal of 2657651 is 1567562.

It is a happy number.

2657651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2657651 - 2¹⁰ = 2656627 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2657657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328825 + 1328826.

It is an arithmetic number, because the mean of its divisors is an integer number (1328826).

2^2657651 is an apocalyptic number.

2657651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657651 is an equidigital number, since it uses as much as digits as its factorization.

2657651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 2657651 is about 1630.2303518215. The cubic root of 2657651 is about 138.5158005667.

The spelling of 2657651 in words is "two million, six hundred fifty-seven thousand, six hundred fifty-one".