1055387 has 2 divisors, whose sum is σ = 1055388. Its totient is φ = 1055386.

The previous prime is 1055371. The next prime is 1055399. The reversal of 1055387 is 7835501.

It is a strong prime.

It is an emirp because it is prime and its reverse (7835501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055387 - 2⁴ = 1055371 is a prime.

It is a super-2 number, since 2×1055387² = 2227683439538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1055347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527693 + 527694.

It is an arithmetic number, because the mean of its divisors is an integer number (527694).

2^1055387 is an apocalyptic number.

1055387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055387 is an equidigital number, since it uses as much as digits as its factorization.

1055387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1055387 is about 1027.3203005879. The cubic root of 1055387 is about 101.8131591765.

The spelling of 1055387 in words is "one million, fifty-five thousand, three hundred eighty-seven".