1466657 has 2 divisors, whose sum is σ = 1466658. Its totient is φ = 1466656.

The previous prime is 1466653. The next prime is 1466659. The reversal of 1466657 is 7566641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1336336 + 130321 = 1156^2 + 361^2 .

It is an emirp because it is prime and its reverse (7566641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1466657 - 2² = 1466653 is a prime.

Together with 1466659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1466653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 733328 + 733329.

It is an arithmetic number, because the mean of its divisors is an integer number (733329).

2^1466657 is an apocalyptic number.

It is an amenable number.

1466657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1466657 is an equidigital number, since it uses as much as digits as its factorization.

1466657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 1466657 is about 1211.0561506388. The cubic root of 1466657 is about 113.6168784433.

The spelling of 1466657 in words is "one million, four hundred sixty-six thousand, six hundred fifty-seven".