20693950 has 12 divisors (see below), whose sum is σ = 38490840. Its totient is φ = 8277560.

The previous prime is 20693941. The next prime is 20693993. The reversal of 20693950 is 5939602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206890 + ... + 206989.

It is an arithmetic number, because the mean of its divisors is an integer number (3207570).

Almost surely, 2^20693950 is an apocalyptic number.

20693950 is a deficient number, since it is larger than the sum of its proper divisors (17796890).

20693950 is a wasteful number, since it uses less digits than its factorization.

20693950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413891 (or 413886 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 20693950 is about 4549.0603425323. The cubic root of 20693950 is about 274.5455856202.

The spelling of 20693950 in words is "twenty million, six hundred ninety-three thousand, nine hundred fifty".