20346697 has 16 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 16288272.

The previous prime is 20346679. The next prime is 20346713. The reversal of 20346697 is 79664302.

It is not a de Polignac number, because 20346697 - 2¹⁹ = 19822409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20346607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5454 + ... + 8392.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 2^20346697 is an apocalyptic number.

It is an amenable number.

20346697 is a deficient number, since it is larger than the sum of its proper divisors (4490423).

20346697 is a wasteful number, since it uses less digits than its factorization.

20346697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 20346697 is about 4510.7313154299. The cubic root of 20346697 is about 273.0012523032.

The spelling of 20346697 in words is "twenty million, three hundred forty-six thousand, six hundred ninety-seven".