1961923 has 8 divisors (see below), whose sum is σ = 2062368. Its totient is φ = 1862784.

The previous prime is 1961917. The next prime is 1961929. The reversal of 1961923 is 3291691.

It is an interprime number because it is at equal distance from previous prime (1961917) and next prime (1961929).

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

It is a cyclic number.

It is not a de Polignac number, because 1961923 - 2⁹ = 1961411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1961929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4315 + ... + 4747.

It is an arithmetic number, because the mean of its divisors is an integer number (257796).

2^1961923 is an apocalyptic number.

1961923 is a deficient number, since it is larger than the sum of its proper divisors (100445).

1961923 is a wasteful number, since it uses less digits than its factorization.

1961923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its digits is 2916, while the sum is 31.

The square root of 1961923 is about 1400.6866173417. The cubic root of 1961923 is about 125.1874095475.

The spelling of 1961923 in words is "one million, nine hundred sixty-one thousand, nine hundred twenty-three".