1357823993 has 8 divisors (see below), whose sum is σ = 1405058880. Its totient is φ = 1310616720.

The previous prime is 1357823989. The next prime is 1357824001. The reversal of 1357823993 is 3993287531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1357823993 - 2² = 1357823989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357823903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172796 + ... + 180482.

It is an arithmetic number, because the mean of its divisors is an integer number (175632360).

Almost surely, 2^1357823993 is an apocalyptic number.

It is an amenable number.

1357823993 is a deficient number, since it is larger than the sum of its proper divisors (47234887).

1357823993 is an equidigital number, since it uses as much as digits as its factorization.

1357823993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13807.

The product of its digits is 1224720, while the sum is 50.

The square root of 1357823993 is about 36848.6633814579. The cubic root of 1357823993 is about 1107.3404371418.

The spelling of 1357823993 in words is "one billion, three hundred fifty-seven million, eight hundred twenty-three thousand, nine hundred ninety-three".