1965379 has 16 divisors (see below), whose sum is σ = 2279200. Its totient is φ = 1679616.

The previous prime is 1965377. The next prime is 1965389. The reversal of 1965379 is 9735691.

It is a 8-Lehmer number, since φ(1965379) divides (1965379-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 1965379 - 2¹ = 1965377 is a prime.

It is a super-2 number, since 2×1965379² = 7725429227282, which contains 22 as substring.

It is a Duffinian number.

1965379 is a lucky number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1965377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17977 + ... + 18085.

It is an arithmetic number, because the mean of its divisors is an integer number (142450).

2^1965379 is an apocalyptic number.

1965379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1965379 is a deficient number, since it is larger than the sum of its proper divisors (313821).

1965379 is a wasteful number, since it uses less digits than its factorization.

1965379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 51030, while the sum is 40.

The square root of 1965379 is about 1401.9197551929. The cubic root of 1965379 is about 125.2608738466.

The spelling of 1965379 in words is "one million, nine hundred sixty-five thousand, three hundred seventy-nine".