20479467 has 8 divisors (see below), whose sum is σ = 27576720. Its totient is φ = 13517600.

The previous prime is 20479439. The next prime is 20479489. The reversal of 20479467 is 76497402.

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 20479467 - 2¹⁶ = 20413931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20479427) 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, 33492 + ... + 34097.

It is an arithmetic number, because the mean of its divisors is an integer number (3447090).

Almost surely, 2^20479467 is an apocalyptic number.

20479467 is a deficient number, since it is larger than the sum of its proper divisors (7097253).

20479467 is a wasteful number, since it uses less digits than its factorization.

20479467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67693.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 20479467 is about 4525.4245104741. The cubic root of 20479467 is about 273.5937779654.

The spelling of 20479467 in words is "twenty million, four hundred seventy-nine thousand, four hundred sixty-seven".