1023597 has 10 divisors (see below), whose sum is σ = 1529198. Its totient is φ = 682344.

The previous prime is 1023577. The next prime is 1023601. The reversal of 1023597 is 7953201.

It can be written as a sum of positive squares in only one way, i.e., 670761 + 352836 = 819^2 + 594^2 .

It is not a de Polignac number, because 1023597 - 2¹⁰ = 1022573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023557) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6238 + ... + 6399.

2^1023597 is an apocalyptic number.

It is an amenable number.

1023597 is a deficient number, since it is larger than the sum of its proper divisors (505601).

1023597 is an equidigital number, since it uses as much as digits as its factorization.

1023597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12649 (or 12640 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1023597 is about 1011.7297069870. The cubic root of 1023597 is about 100.7804596477.

Adding to 1023597 its reverse (7953201), we get a palindrome (8976798).

The spelling of 1023597 in words is "one million, twenty-three thousand, five hundred ninety-seven".