1993500 has 72 divisors (see below), whose sum is σ = 6303024. Its totient is φ = 530400.

The previous prime is 1993493. The next prime is 1993507. The reversal of 1993500 is 53991.

It is an interprime number because it is at equal distance from previous prime (1993493) and next prime (1993507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4279 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (87542).

2^1993500 is an apocalyptic number.

1993500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3151512).

1993500 is an abundant number, since it is smaller than the sum of its proper divisors (4309524).

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

1993500 is a wasteful number, since it uses less digits than its factorization.

1993500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1993500 is about 1411.9135950900. The cubic root of 1993500 is about 125.8554654091.

The spelling of 1993500 in words is "one million, nine hundred ninety-three thousand, five hundred".