20963496 has 32 divisors (see below), whose sum is σ = 53195040. Its totient is φ = 6883008.

The previous prime is 20963473. The next prime is 20963507. The reversal of 20963496 is 69436902.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4911 + ... + 8126.

It is an arithmetic number, because the mean of its divisors is an integer number (1662345).

Almost surely, 2^20963496 is an apocalyptic number.

It is an amenable number.

20963496 is an abundant number, since it is smaller than the sum of its proper divisors (32231544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20963496 is a wasteful number, since it uses less digits than its factorization.

20963496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113 (or 13109 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 20963496 is about 4578.5910496571. The cubic root of 20963496 is about 275.7324649717.

The spelling of 20963496 in words is "twenty million, nine hundred sixty-three thousand, four hundred ninety-six".