1358979 has 8 divisors (see below), whose sum is σ = 1818960. Its totient is φ = 902496.

The previous prime is 1358977. The next prime is 1358983. The reversal of 1358979 is 9798531.

It is a happy number.

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

It is not a de Polignac number, because 1358979 - 2¹ = 1358977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1358979.

It is not an unprimeable number, because it can be changed into a prime (1358977) 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, 237 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (227370).

2^1358979 is an apocalyptic number.

1358979 is a deficient number, since it is larger than the sum of its proper divisors (459981).

1358979 is a wasteful number, since it uses less digits than its factorization.

1358979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749.

The product of its digits is 68040, while the sum is 42.

The square root of 1358979 is about 1165.7525466410. The cubic root of 1358979 is about 110.7654327476.

The spelling of 1358979 in words is "one million, three hundred fifty-eight thousand, nine hundred seventy-nine".