20198701 has 8 divisors (see below), whose sum is σ = 20902400. Its totient is φ = 19498320.

The previous prime is 20198657. The next prime is 20198713. The reversal of 20198701 is 10789102.

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

It is a cyclic number.

It is not a de Polignac number, because 20198701 - 2⁷ = 20198573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20198701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20198741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21520 + ... + 22438.

It is an arithmetic number, because the mean of its divisors is an integer number (2612800).

Almost surely, 2^20198701 is an apocalyptic number.

It is an amenable number.

20198701 is a deficient number, since it is larger than the sum of its proper divisors (703699).

20198701 is an equidigital number, since it uses as much as digits as its factorization.

20198701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 20198701 is about 4494.2964966722. The cubic root of 20198701 is about 272.3377301721.

The spelling of 20198701 in words is "twenty million, one hundred ninety-eight thousand, seven hundred one".