1961316 has 72 divisors (see below), whose sum is σ = 5829824. Its totient is φ = 544320.

The previous prime is 1961257. The next prime is 1961321. The reversal of 1961316 is 6131691.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1961316.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10746 + ... + 10926.

2^1961316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1961316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2914912).

1961316 is an abundant number, since it is smaller than the sum of its proper divisors (3868508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961316 is a wasteful number, since it uses less digits than its factorization.

1961316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 236 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1961316 is about 1400.4699211336. The cubic root of 1961316 is about 125.1744976246.

The spelling of 1961316 in words is "one million, nine hundred sixty-one thousand, three hundred sixteen".