1337993 has 4 divisors (see below), whose sum is σ = 1342080. Its totient is φ = 1333908.

The previous prime is 1337989. The next prime is 1338013. The reversal of 1337993 is 3997331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1337993 - 2² = 1337989 is a prime.

It is a super-4 number, since 4×1337993⁴ (a number of 26 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1337983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (335520).

2^1337993 is an apocalyptic number.

It is an amenable number.

1337993 is a deficient number, since it is larger than the sum of its proper divisors (4087).

1337993 is an equidigital number, since it uses as much as digits as its factorization.

1337993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086.

The product of its digits is 15309, while the sum is 35.

The square root of 1337993 is about 1156.7164734714. The cubic root of 1337993 is about 110.1923082280.

The spelling of 1337993 in words is "one million, three hundred thirty-seven thousand, nine hundred ninety-three".