1028554 has 4 divisors (see below), whose sum is σ = 1542834. Its totient is φ = 514276.

The previous prime is 1028509. The next prime is 1028557. The reversal of 1028554 is 4558201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 801025 + 227529 = 895^2 + 477^2 .

It is not an unprimeable number, because it can be changed into a prime (1028557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257137 + ... + 257140.

2^1028554 is an apocalyptic number.

1028554 is a deficient number, since it is larger than the sum of its proper divisors (514280).

1028554 is an equidigital number, since it uses as much as digits as its factorization.

1028554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514279.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1028554 is about 1014.1765132362. The cubic root of 1028554 is about 100.9428817976.

The spelling of 1028554 in words is "one million, twenty-eight thousand, five hundred fifty-four".