1996415 has 4 divisors (see below), whose sum is σ = 2395704. Its totient is φ = 1597128.

The previous prime is 1996411. The next prime is 1996417. The reversal of 1996415 is 5146991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5146991 = 1423 ⋅3617.

It is a cyclic number.

It is not a de Polignac number, because 1996415 - 2² = 1996411 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 (1996411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199637 + ... + 199646.

It is an arithmetic number, because the mean of its divisors is an integer number (598926).

2^1996415 is an apocalyptic number.

1996415 is a deficient number, since it is larger than the sum of its proper divisors (399289).

1996415 is an equidigital number, since it uses as much as digits as its factorization.

1996415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399288.

The product of its digits is 9720, while the sum is 35.

The square root of 1996415 is about 1412.9455049647. The cubic root of 1996415 is about 125.9167796819.

The spelling of 1996415 in words is "one million, nine hundred ninety-six thousand, four hundred fifteen".