1993650 has 24 divisors (see below), whose sum is σ = 4944624. Its totient is φ = 531600.

The previous prime is 1993643. The next prime is 1993657. The reversal of 1993650 is 563991.

It is an interprime number because it is at equal distance from previous prime (1993643) and next prime (1993657).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1993657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6496 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (206026).

2^1993650 is an apocalyptic number.

1993650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1993650 is an abundant number, since it is smaller than the sum of its proper divisors (2950974).

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

1993650 is a wasteful number, since it uses less digits than its factorization.

1993650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13306 (or 13301 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1993650 is about 1411.9667134887. The cubic root of 1993650 is about 125.8586219757.

The spelling of 1993650 in words is "one million, nine hundred ninety-three thousand, six hundred fifty".