20460497 has 8 divisors (see below), whose sum is σ = 20724000. Its totient is φ = 20198880.

The previous prime is 20460467. The next prime is 20460523. The reversal of 20460497 is 79406402.

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 20460497 - 2⁸ = 20460241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20460467) 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, 40754 + ... + 41252.

It is an arithmetic number, because the mean of its divisors is an integer number (2590500).

Almost surely, 2^20460497 is an apocalyptic number.

It is an amenable number.

20460497 is a deficient number, since it is larger than the sum of its proper divisors (263503).

20460497 is a wasteful number, since it uses less digits than its factorization.

20460497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20460497 is about 4523.3280889186. The cubic root of 20460497 is about 273.5092758101.

Adding to 20460497 its reverse (79406402), we get a palindrome (99866899).

The spelling of 20460497 in words is "twenty million, four hundred sixty thousand, four hundred ninety-seven".