1358993 has 2 divisors, whose sum is σ = 1358994. Its totient is φ = 1358992.

The previous prime is 1358983. The next prime is 1359023. The reversal of 1358993 is 3998531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1329409 + 29584 = 1153^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1358993 - 2⁴ = 1358977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1358933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679496 + 679497.

It is an arithmetic number, because the mean of its divisors is an integer number (679497).

2^1358993 is an apocalyptic number.

It is an amenable number.

1358993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358993 is an equidigital number, since it uses as much as digits as its factorization.

1358993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 1358993 is about 1165.7585513304. The cubic root of 1358993 is about 110.7658131093.

The spelling of 1358993 in words is "one million, three hundred fifty-eight thousand, nine hundred ninety-three".