2029961 has 4 divisors (see below), whose sum is σ = 2058624. Its totient is φ = 2001300.

The previous prime is 2029939. The next prime is 2029967. The reversal of 2029961 is 1699202.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1699202 = 2 ⋅849601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2029961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14225 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (514656).

2^2029961 is an apocalyptic number.

It is an amenable number.

2029961 is a deficient number, since it is larger than the sum of its proper divisors (28663).

2029961 is an equidigital number, since it uses as much as digits as its factorization.

2029961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2029961 is about 1424.7669984948. The cubic root of 2029961 is about 126.6181308351.

The spelling of 2029961 in words is "two million, twenty-nine thousand, nine hundred sixty-one".