20715098 has 8 divisors (see below), whose sum is σ = 31206708. Its totient is φ = 10312864.

The previous prime is 20715091. The next prime is 20715113. The reversal of 20715098 is 89051702.

It can be written as a sum of positive squares in 2 ways, for example, as 18515809 + 2199289 = 4303^2 + 1483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20715091) 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, 21761 + ... + 22692.

Almost surely, 2^20715098 is an apocalyptic number.

20715098 is a deficient number, since it is larger than the sum of its proper divisors (10491610).

20715098 is a wasteful number, since it uses less digits than its factorization.

20715098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44688.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 20715098 is about 4551.3841850584. The cubic root of 20715098 is about 274.6390769279.

The spelling of 20715098 in words is "twenty million, seven hundred fifteen thousand, ninety-eight".