20607316 has 12 divisors (see below), whose sum is σ = 36557332. Its totient is φ = 10162368.

The previous prime is 20607311. The next prime is 20607319. The reversal of 20607316 is 61370602.

It can be written as a sum of positive squares in 2 ways, for example, as 7862416 + 12744900 = 2804^2 + 3570^2 .

It is a super-2 number, since 2×20607316² = 849322945447712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34995 + ... + 35578.

Almost surely, 2^20607316 is an apocalyptic number.

It is an amenable number.

20607316 is a deficient number, since it is larger than the sum of its proper divisors (15950016).

20607316 is a wasteful number, since it uses less digits than its factorization.

20607316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70650 (or 70648 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20607316 is about 4539.5281693145. The cubic root of 20607316 is about 274.1619267706.

Adding to 20607316 its reverse (61370602), we get a palindrome (81977918).

The spelling of 20607316 in words is "twenty million, six hundred seven thousand, three hundred sixteen".