20789702 has 4 divisors (see below), whose sum is σ = 31184556. Its totient is φ = 10394850.

The previous prime is 20789701. The next prime is 20789731. The reversal of 20789702 is 20798702.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20789701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5197424 + ... + 5197427.

It is an arithmetic number, because the mean of its divisors is an integer number (7796139).

Almost surely, 2^20789702 is an apocalyptic number.

20789702 is a deficient number, since it is larger than the sum of its proper divisors (10394854).

20789702 is a wasteful number, since it uses less digits than its factorization.

20789702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394853.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 20789702 is about 4559.5725676866. The cubic root of 20789702 is about 274.9683798355.

The spelling of 20789702 in words is "twenty million, seven hundred eighty-nine thousand, seven hundred two".