1956413 has 4 divisors (see below), whose sum is σ = 1966848. Its totient is φ = 1945980.

The previous prime is 1956391. The next prime is 1956419. The reversal of 1956413 is 3146591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1956413 - 2¹⁰ = 1955389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956419) 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, 4931 + ... + 5312.

It is an arithmetic number, because the mean of its divisors is an integer number (491712).

2^1956413 is an apocalyptic number.

It is an amenable number.

1956413 is a deficient number, since it is larger than the sum of its proper divisors (10435).

1956413 is a wasteful number, since it uses less digits than its factorization.

1956413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434.

The product of its digits is 3240, while the sum is 29.

The square root of 1956413 is about 1398.7183419116. The cubic root of 1956413 is about 125.0701046753.

The spelling of 1956413 in words is "one million, nine hundred fifty-six thousand, four hundred thirteen".