20710316 has 12 divisors (see below), whose sum is σ = 39537960. Its totient is φ = 9413760.

The previous prime is 20710309. The next prime is 20710331. The reversal of 20710316 is 61301702.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235301 + ... + 235388.

It is an arithmetic number, because the mean of its divisors is an integer number (3294830).

Almost surely, 2^20710316 is an apocalyptic number.

It is an amenable number.

20710316 is a deficient number, since it is larger than the sum of its proper divisors (18827644).

20710316 is a wasteful number, since it uses less digits than its factorization.

20710316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470704 (or 470702 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20710316 is about 4550.8588200470. The cubic root of 20710316 is about 274.6179421797.

The spelling of 20710316 in words is "twenty million, seven hundred ten thousand, three hundred sixteen".