1290993 has 32 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 705600.

The previous prime is 1290983. The next prime is 1291001. The reversal of 1290993 is 3990921.

It is not a de Polignac number, because 1290993 - 2¹⁰ = 1289969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18148 + ... + 18218.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2^1290993 is an apocalyptic number.

It is an amenable number.

1290993 is a deficient number, since it is larger than the sum of its proper divisors (782607).

1290993 is a wasteful number, since it uses less digits than its factorization.

1290993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 1290993 is about 1136.2187289426. The cubic root of 1290993 is about 108.8866481483.

The spelling of 1290993 in words is "one million, two hundred ninety thousand, nine hundred ninety-three".