1258799 has 4 divisors (see below), whose sum is σ = 1332864. Its totient is φ = 1184736.

The previous prime is 1258787. The next prime is 1258811. The reversal of 1258799 is 9978521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9978521 = 7 ⋅1425503.

It is an interprime number because it is at equal distance from previous prime (1258787) and next prime (1258811).

It is a cyclic number.

It is not a de Polignac number, because 1258799 - 2⁴ = 1258783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258709) 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, 37007 + ... + 37040.

It is an arithmetic number, because the mean of its divisors is an integer number (333216).

2^1258799 is an apocalyptic number.

1258799 is a deficient number, since it is larger than the sum of its proper divisors (74065).

1258799 is an equidigital number, since it uses as much as digits as its factorization.

1258799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74064.

The product of its digits is 45360, while the sum is 41.

The square root of 1258799 is about 1121.9621205727. The cubic root of 1258799 is about 107.9739020159.

The spelling of 1258799 in words is "one million, two hundred fifty-eight thousand, seven hundred ninety-nine".