20958962 has 4 divisors (see below), whose sum is σ = 31438446. Its totient is φ = 10479480.

The previous prime is 20958961. The next prime is 20958979. The reversal of 20958962 is 26985902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 1413721 = 4421^2 + 1189^2 .

It is not an unprimeable number, because it can be changed into a prime (20958961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5239739 + ... + 5239742.

Almost surely, 2^20958962 is an apocalyptic number.

20958962 is a deficient number, since it is larger than the sum of its proper divisors (10479484).

20958962 is a wasteful number, since it uses less digits than its factorization.

20958962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479483.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 20958962 is about 4578.0958923989. The cubic root of 20958962 is about 275.7125849998.

The spelling of 20958962 in words is "twenty million, nine hundred fifty-eight thousand, nine hundred sixty-two".