1228577 has 6 divisors (see below), whose sum is σ = 1429218. Its totient is φ = 1053024.

The previous prime is 1228571. The next prime is 1228583. The reversal of 1228577 is 7758221.

It is an interprime number because it is at equal distance from previous prime (1228571) and next prime (1228583).

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 226576 = 1001^2 + 476^2 .

It is not a de Polignac number, because 1228577 - 2¹² = 1224481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228571) 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 in 5 ways as a sum of consecutive naturals, for example, 12488 + ... + 12585.

It is an arithmetic number, because the mean of its divisors is an integer number (238203).

2^1228577 is an apocalyptic number.

It is an amenable number.

1228577 is a deficient number, since it is larger than the sum of its proper divisors (200641).

1228577 is an equidigital number, since it uses as much as digits as its factorization.

1228577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25087 (or 25080 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 1228577 is about 1108.4119270380. The cubic root of 1228577 is about 107.1027923005.

The spelling of 1228577 in words is "one million, two hundred twenty-eight thousand, five hundred seventy-seven".