19960497 has 24 divisors (see below), whose sum is σ = 30800640. Its totient is φ = 12428640.

The previous prime is 19960459. The next prime is 19960511. The reversal of 19960497 is 79406991.

It is not a de Polignac number, because 19960497 - 2¹⁰ = 19959473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19960417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6858 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (1283360).

Almost surely, 2^19960497 is an apocalyptic number.

It is an amenable number.

19960497 is a deficient number, since it is larger than the sum of its proper divisors (10840143).

19960497 is a wasteful number, since it uses less digits than its factorization.

19960497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 19960497 is about 4467.7172023305. The cubic root of 19960497 is about 271.2629311369.

The spelling of 19960497 in words is "nineteen million, nine hundred sixty thousand, four hundred ninety-seven".