20077197 has 8 divisors (see below), whose sum is σ = 30593856. Its totient is φ = 11472672.

The previous prime is 20077171. The next prime is 20077217. The reversal of 20077197 is 79177002.

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

It is not a de Polignac number, because 20077197 - 2⁶ = 20077133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20077147) 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, 478008 + ... + 478049.

It is an arithmetic number, because the mean of its divisors is an integer number (3824232).

Almost surely, 2^20077197 is an apocalyptic number.

It is an amenable number.

20077197 is a deficient number, since it is larger than the sum of its proper divisors (10516659).

20077197 is an equidigital number, since it uses as much as digits as its factorization.

20077197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956067.

The product of its (nonzero) digits is 6174, while the sum is 33.

The square root of 20077197 is about 4480.7585295349. The cubic root of 20077197 is about 271.7905547752.

The spelling of 20077197 in words is "twenty million, seventy-seven thousand, one hundred ninety-seven".