1956913 has 6 divisors (see below), whose sum is σ = 2276466. Its totient is φ = 1677312.

The previous prime is 1956907. The next prime is 1956953. The reversal of 1956913 is 3196591.

It can be written as a sum of positive squares in only one way, i.e., 1882384 + 74529 = 1372^2 + 273^2 .

It is not a de Polignac number, because 1956913 - 2⁵ = 1956881 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1956953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19920 + ... + 20017.

It is an arithmetic number, because the mean of its divisors is an integer number (379411).

2^1956913 is an apocalyptic number.

It is an amenable number.

1956913 is a deficient number, since it is larger than the sum of its proper divisors (319553).

1956913 is an equidigital number, since it uses as much as digits as its factorization.

1956913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39951 (or 39944 counting only the distinct ones).

The product of its digits is 7290, while the sum is 34.

The square root of 1956913 is about 1398.8970655484. The cubic root of 1956913 is about 125.0807584800.

The spelling of 1956913 in words is "one million, nine hundred fifty-six thousand, nine hundred thirteen".