20034961 has 4 divisors (see below), whose sum is σ = 20044800. Its totient is φ = 20025124.

The previous prime is 20034941. The next prime is 20034977. The reversal of 20034961 is 16943002.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20034961 - 2⁵ = 20034929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601 + ... + 6358.

It is an arithmetic number, because the mean of its divisors is an integer number (5011200).

Almost surely, 2^20034961 is an apocalyptic number.

It is an amenable number.

20034961 is a deficient number, since it is larger than the sum of its proper divisors (9839).

20034961 is an equidigital number, since it uses as much as digits as its factorization.

20034961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9838.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20034961 is about 4476.0430069426. The cubic root of 20034961 is about 271.5998341795.

Adding to 20034961 its reverse (16943002), we get a palindrome (36977963).

The spelling of 20034961 in words is "twenty million, thirty-four thousand, nine hundred sixty-one".