19979341 has 8 divisors (see below), whose sum is σ = 21357504. Its totient is φ = 18643680.

The previous prime is 19979339. The next prime is 19979359. The reversal of 19979341 is 14397991.

It is a happy number.

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 19979341 - 2¹ = 19979339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19979041) 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, 9651 + ... + 11536.

It is an arithmetic number, because the mean of its divisors is an integer number (2669688).

Almost surely, 2^19979341 is an apocalyptic number.

It is an amenable number.

19979341 is a deficient number, since it is larger than the sum of its proper divisors (1378163).

19979341 is a wasteful number, since it uses less digits than its factorization.

19979341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21251.

The product of its digits is 61236, while the sum is 43.

The square root of 19979341 is about 4469.8256118108. The cubic root of 19979341 is about 271.3482675379.

The spelling of 19979341 in words is "nineteen million, nine hundred seventy-nine thousand, three hundred forty-one".