2023961 has 4 divisors (see below), whose sum is σ = 2067072. Its totient is φ = 1980852.

The previous prime is 2023951. The next prime is 2023963. The reversal of 2023961 is 1693202.

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 2023961 - 2¹⁸ = 1761817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21485 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (516768).

2^2023961 is an apocalyptic number.

It is an amenable number.

2023961 is a deficient number, since it is larger than the sum of its proper divisors (43111).

2023961 is an equidigital number, since it uses as much as digits as its factorization.

2023961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43110.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2023961 is about 1422.6598328483. The cubic root of 2023961 is about 126.4932584012.

The spelling of 2023961 in words is "two million, twenty-three thousand, nine hundred sixty-one".