1457887 has 2 divisors, whose sum is σ = 1457888. Its totient is φ = 1457886.

The previous prime is 1457879. The next prime is 1457891. The reversal of 1457887 is 7887541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1457887 - 2³ = 1457879 is a prime.

1457887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728943 + 728944.

It is an arithmetic number, because the mean of its divisors is an integer number (728944).

2^1457887 is an apocalyptic number.

1457887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457887 is an equidigital number, since it uses as much as digits as its factorization.

1457887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 40.

The square root of 1457887 is about 1207.4299151504. The cubic root of 1457887 is about 113.3899649688.

The spelling of 1457887 in words is "one million, four hundred fifty-seven thousand, eight hundred eighty-seven".