1955879 has 8 divisors (see below), whose sum is σ = 2071680. Its totient is φ = 1841400.

The previous prime is 1955873. The next prime is 1955887. The reversal of 1955879 is 9785591.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1955879 - 2¹² = 1951783 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 (1955873) 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, 5744 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (258960).

2^1955879 is an apocalyptic number.

1955879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1955879 is a deficient number, since it is larger than the sum of its proper divisors (115801).

1955879 is a wasteful number, since it uses less digits than its factorization.

1955879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its digits is 113400, while the sum is 44.

The square root of 1955879 is about 1398.5274398452. The cubic root of 1955879 is about 125.0587244072.

The spelling of 1955879 in words is "one million, nine hundred fifty-five thousand, eight hundred seventy-nine".