1379955 has 8 divisors (see below), whose sum is σ = 2207952. Its totient is φ = 735968.

The previous prime is 1379953. The next prime is 1379957. The reversal of 1379955 is 5599731.

It is an interprime number because it is at equal distance from previous prime (1379953) and next prime (1379957).

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 1379955 - 2¹ = 1379953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45984 + ... + 46013.

It is an arithmetic number, because the mean of its divisors is an integer number (275994).

2^1379955 is an apocalyptic number.

1379955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1379955 is a deficient number, since it is larger than the sum of its proper divisors (827997).

1379955 is an equidigital number, since it uses as much as digits as its factorization.

1379955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92005.

The product of its digits is 42525, while the sum is 39.

The square root of 1379955 is about 1174.7148590190. The cubic root of 1379955 is about 111.3324179908.

Subtracting from 1379955 its product of digits (42525), we obtain a triangular number (1337430 = T₁₆₃₅).

The spelling of 1379955 in words is "one million, three hundred seventy-nine thousand, nine hundred fifty-five".