20285607 has 8 divisors (see below), whose sum is σ = 28638576. Its totient is φ = 12728192.

The previous prime is 20285599. The next prime is 20285621. The reversal of 20285607 is 70658202.

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 20285607 - 2³ = 20285599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20285627) 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, 198828 + ... + 198929.

It is an arithmetic number, because the mean of its divisors is an integer number (3579822).

Almost surely, 2^20285607 is an apocalyptic number.

20285607 is a deficient number, since it is larger than the sum of its proper divisors (8352969).

20285607 is a wasteful number, since it uses less digits than its factorization.

20285607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397777.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20285607 is about 4503.9545956859. The cubic root of 20285607 is about 272.7277539284.

The spelling of 20285607 in words is "twenty million, two hundred eighty-five thousand, six hundred seven".