20606097 has 4 divisors (see below), whose sum is σ = 27474800. Its totient is φ = 13737396.

The previous prime is 20606083. The next prime is 20606099. The reversal of 20606097 is 79060602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20606097 - 2⁸ = 20605841 is a prime.

It is a super-2 number, since 2×20606097² = 849222467146818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20606099) 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, 3434347 + ... + 3434352.

It is an arithmetic number, because the mean of its divisors is an integer number (6868700).

Almost surely, 2^20606097 is an apocalyptic number.

It is an amenable number.

20606097 is a deficient number, since it is larger than the sum of its proper divisors (6868703).

20606097 is an equidigital number, since it uses as much as digits as its factorization.

20606097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868702.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 20606097 is about 4539.3939022737. The cubic root of 20606097 is about 274.1565207620.

Adding to 20606097 its reverse (79060602), we get a palindrome (99666699).

The spelling of 20606097 in words is "twenty million, six hundred six thousand, ninety-seven".