1258867 has 4 divisors (see below), whose sum is σ = 1332936. Its totient is φ = 1184800.

The previous prime is 1258847. The next prime is 1258871. The reversal of 1258867 is 7688521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1258867 - 2¹¹ = 1256819 is a prime.

It is a super-2 number, since 2×1258867² = 3169492247378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1258837) 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, 37009 + ... + 37042.

It is an arithmetic number, because the mean of its divisors is an integer number (333234).

2^1258867 is an apocalyptic number.

1258867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1258867 is a deficient number, since it is larger than the sum of its proper divisors (74069).

1258867 is an equidigital number, since it uses as much as digits as its factorization.

1258867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74068.

The product of its digits is 26880, while the sum is 37.

The square root of 1258867 is about 1121.9924242168. The cubic root of 1258867 is about 107.9758462217.

The spelling of 1258867 in words is "one million, two hundred fifty-eight thousand, eight hundred sixty-seven".