20034997 has 2 divisors, whose sum is σ = 20034998. Its totient is φ = 20034996.

The previous prime is 20034991. The next prime is 20035031. The reversal of 20034997 is 79943002.

It is an a-pointer prime, because the next prime (20035031) can be obtained adding 20034997 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11792356 + 8242641 = 3434^2 + 2871^2 .

It is a cyclic number.

It is not a de Polignac number, because 20034997 - 2⁷ = 20034869 is a prime.

It is a super-2 number, since 2×20034997² = 802802209580018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20034991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017498 + 10017499.

It is an arithmetic number, because the mean of its divisors is an integer number (10017499).

Almost surely, 2^20034997 is an apocalyptic number.

It is an amenable number.

20034997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20034997 is an equidigital number, since it uses as much as digits as its factorization.

20034997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 20034997 is about 4476.0470283499. The cubic root of 20034997 is about 271.5999968549.

Adding to 20034997 its reverse (79943002), we get a palindrome (99977999).

The spelling of 20034997 in words is "twenty million, thirty-four thousand, nine hundred ninety-seven".