1379885 has 24 divisors (see below), whose sum is σ = 1897344. Its totient is φ = 960960.

The previous prime is 1379879. The next prime is 1379887. The reversal of 1379885 is 5889731.

It is a happy number.

1379885 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 1379885 - 2⁴ = 1379869 is a prime.

It is a super-2 number, since 2×1379885² = 3808165226450, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (60480) is a multiple of the sum of its prime divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19400 + ... + 19470.

It is an arithmetic number, because the mean of its divisors is an integer number (79056).

2^1379885 is an apocalyptic number.

It is an amenable number.

1379885 is a deficient number, since it is larger than the sum of its proper divisors (517459).

1379885 is a wasteful number, since it uses less digits than its factorization.

1379885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 112 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 1379885 is about 1174.6850641768. The cubic root of 1379885 is about 111.3305354654.

The spelling of 1379885 in words is "one million, three hundred seventy-nine thousand, eight hundred eighty-five".