1961306 has 8 divisors (see below), whose sum is σ = 2948160. Its totient is φ = 978588.

The previous prime is 1961257. The next prime is 1961321. The reversal of 1961306 is 6031691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (368520).

2^1961306 is an apocalyptic number.

1961306 is a deficient number, since it is larger than the sum of its proper divisors (986854).

1961306 is a wasteful number, since it uses less digits than its factorization.

1961306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1961306 is about 1400.4663508989. The cubic root of 1961306 is about 125.1742848853.

Adding to 1961306 its reverse (6031691), we get a palindrome (7992997).

The spelling of 1961306 in words is "one million, nine hundred sixty-one thousand, three hundred six".