1020598 has 4 divisors (see below), whose sum is σ = 1530900. Its totient is φ = 510298.

The previous prime is 1020589. The next prime is 1020599. The reversal of 1020598 is 8950201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8950201 = 13 ⋅688477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255148 + ... + 255151.

It is an arithmetic number, because the mean of its divisors is an integer number (382725).

2^1020598 is an apocalyptic number.

1020598 is a deficient number, since it is larger than the sum of its proper divisors (510302).

1020598 is an equidigital number, since it uses as much as digits as its factorization.

1020598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510301.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1020598 is about 1010.2465045720. The cubic root of 1020598 is about 100.6819390207.

Adding to 1020598 its reverse (8950201), we get a palindrome (9970799).

It can be divided in two parts, 1020 and 598, that multiplied together give a triangular number (609960 = T₁₁₀₄).

The spelling of 1020598 in words is "one million, twenty thousand, five hundred ninety-eight".