20798590 has 8 divisors (see below), whose sum is σ = 37437480. Its totient is φ = 8319432.

The previous prime is 20798587. The next prime is 20798593. The reversal of 20798590 is 9589702.

It is an interprime number because it is at equal distance from previous prime (20798587) and next prime (20798593).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20798593) 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, 1039920 + ... + 1039939.

It is an arithmetic number, because the mean of its divisors is an integer number (4679685).

Almost surely, 2^20798590 is an apocalyptic number.

20798590 is a deficient number, since it is larger than the sum of its proper divisors (16638890).

20798590 is a wasteful number, since it uses less digits than its factorization.

20798590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079866.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 20798590 is about 4560.5471163009. The cubic root of 20798590 is about 275.0075590209.

The spelling of 20798590 in words is "twenty million, seven hundred ninety-eight thousand, five hundred ninety".