20963346 has 64 divisors (see below), whose sum is σ = 48470400. Its totient is φ = 5999616.

The previous prime is 20963339. The next prime is 20963353. The reversal of 20963346 is 64336902.

It is an interprime number because it is at equal distance from previous prime (20963339) and next prime (20963353).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56016 + ... + 56388.

It is an arithmetic number, because the mean of its divisors is an integer number (757350).

Almost surely, 2^20963346 is an apocalyptic number.

20963346 is an abundant number, since it is smaller than the sum of its proper divisors (27507054).

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

20963346 is a wasteful number, since it uses less digits than its factorization.

20963346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 20963346 is about 4578.5746690428. The cubic root of 20963346 is about 275.7318073211.

The spelling of 20963346 in words is "twenty million, nine hundred sixty-three thousand, three hundred forty-six".