1960657 has 4 divisors (see below), whose sum is σ = 2023936. Its totient is φ = 1897380.

The previous prime is 1960649. The next prime is 1960669. The reversal of 1960657 is 7560691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1960657 - 2³ = 1960649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1961657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31593 + ... + 31654.

It is an arithmetic number, because the mean of its divisors is an integer number (505984).

2^1960657 is an apocalyptic number.

It is an amenable number.

1960657 is a deficient number, since it is larger than the sum of its proper divisors (63279).

1960657 is an equidigital number, since it uses as much as digits as its factorization.

1960657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63278.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1960657 is about 1400.2346231971. The cubic root of 1960657 is about 125.1604765567.

Adding to 1960657 its sum of digits (34), we get a palindrome (1960691).

The spelling of 1960657 in words is "one million, nine hundred sixty thousand, six hundred fifty-seven".