20482787 has 8 divisors (see below), whose sum is σ = 22819440. Its totient is φ = 18254880.

The previous prime is 20482783. The next prime is 20482789. The reversal of 20482787 is 78728402.

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 20482787 - 2² = 20482783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20482787.

It is not an unprimeable number, because it can be changed into a prime (20482783) 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, 26789 + ... + 27542.

It is an arithmetic number, because the mean of its divisors is an integer number (2852430).

Almost surely, 2^20482787 is an apocalyptic number.

20482787 is a deficient number, since it is larger than the sum of its proper divisors (2336653).

20482787 is a wasteful number, since it uses less digits than its factorization.

20482787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54373.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 20482787 is about 4525.7913120249. The cubic root of 20482787 is about 273.6085615901.

The spelling of 20482787 in words is "twenty million, four hundred eighty-two thousand, seven hundred eighty-seven".