19730079 has 12 divisors (see below), whose sum is σ = 28548000. Its totient is φ = 13130784.

The previous prime is 19730071. The next prime is 19730089. The reversal of 19730079 is 97003791.

It is not a de Polignac number, because 19730079 - 2³ = 19730071 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19730071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4947 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (2379000).

Almost surely, 2^19730079 is an apocalyptic number.

19730079 is a deficient number, since it is larger than the sum of its proper divisors (8817921).

19730079 is a wasteful number, since it uses less digits than its factorization.

19730079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 19730079 is about 4441.8553555918. The cubic root of 19730079 is about 270.2150960874.

It can be divided in two parts, 197 and 30079, that added together give a square (30276 = 174²).

The spelling of 19730079 in words is "nineteen million, seven hundred thirty thousand, seventy-nine".