19480997 has 8 divisors (see below), whose sum is σ = 20728512. Its totient is φ = 18244800.

The previous prime is 19480991. The next prime is 19481017. The reversal of 19480997 is 79908491.

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 19480997 - 2¹² = 19476901 is a prime.

It is a super-2 number, since 2×19480997² = 759018488228018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480991) 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, 872 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (2591064).

Almost surely, 2^19480997 is an apocalyptic number.

19480997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19480997 is a deficient number, since it is larger than the sum of its proper divisors (1247515).

19480997 is a wasteful number, since it uses less digits than its factorization.

19480997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5659.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 19480997 is about 4413.7282426538. The cubic root of 19480997 is about 269.0731686922.

The spelling of 19480997 in words is "nineteen million, four hundred eighty thousand, nine hundred ninety-seven".