19484997 has 24 divisors (see below), whose sum is σ = 30604896. Its totient is φ = 10993248.

The previous prime is 19484989. The next prime is 19485001. The reversal of 19484997 is 79948491.

It is not a de Polignac number, because 19484997 - 2³ = 19484989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19484917) 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, 11403 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (1275204).

Almost surely, 2^19484997 is an apocalyptic number.

It is an amenable number.

19484997 is a deficient number, since it is larger than the sum of its proper divisors (11119899).

19484997 is a wasteful number, since it uses less digits than its factorization.

19484997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697 (or 1690 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 19484997 is about 4414.1813510548. The cubic root of 19484997 is about 269.0915835440.

The spelling of 19484997 in words is "nineteen million, four hundred eighty-four thousand, nine hundred ninety-seven".