1597950 has 72 divisors (see below), whose sum is σ = 4439448. Its totient is φ = 411840.

The previous prime is 1597943. The next prime is 1597951. The reversal of 1597950 is 597951.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597951) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23817 + ... + 23883.

It is an arithmetic number, because the mean of its divisors is an integer number (61659).

2^1597950 is an apocalyptic number.

1597950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1597950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2219724).

1597950 is an abundant number, since it is smaller than the sum of its proper divisors (2841498).

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

1597950 is a wasteful number, since it uses less digits than its factorization.

1597950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 1597950 is about 1264.1004706905. The cubic root of 1597950 is about 116.9107362100.

Subtracting from 1597950 its reverse (597951), we obtain a palindrome (999999).

The spelling of 1597950 in words is "one million, five hundred ninety-seven thousand, nine hundred fifty".