1027628 has 30 divisors (see below), whose sum is σ = 2117556. Its totient is φ = 436296.

The previous prime is 1027613. The next prime is 1027643. The reversal of 1027628 is 8267201.

It is an interprime number because it is at equal distance from previous prime (1027613) and next prime (1027643).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1027597 and 1027606.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9551 + ... + 9657.

2^1027628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1027628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058778).

1027628 is an abundant number, since it is smaller than the sum of its proper divisors (1089928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1027628 is an equidigital number, since it uses as much as digits as its factorization.

1027628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1027628 is about 1013.7198824133. The cubic root of 1027628 is about 100.9125799779.

The spelling of 1027628 in words is "one million, twenty-seven thousand, six hundred twenty-eight".