20846956 has 12 divisors (see below), whose sum is σ = 39288592. Its totient is φ = 9621648.

The previous prime is 20846953. The next prime is 20846957. The reversal of 20846956 is 65964802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20846953) 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, 200400 + ... + 200503.

Almost surely, 2^20846956 is an apocalyptic number.

20846956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20846956 is a deficient number, since it is larger than the sum of its proper divisors (18441636).

20846956 is a wasteful number, since it uses less digits than its factorization.

20846956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400920 (or 400918 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 20846956 is about 4565.8466903741. The cubic root of 20846956 is about 275.2205657461.

The spelling of 20846956 in words is "twenty million, eight hundred forty-six thousand, nine hundred fifty-six".