20675087 has 8 divisors (see below), whose sum is σ = 21010080. Its totient is φ = 20342880.

The previous prime is 20675069. The next prime is 20675099. The reversal of 20675087 is 78057602.

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 20675087 - 2⁶ = 20675023 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 (20075087) 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, 18089 + ... + 19197.

It is an arithmetic number, because the mean of its divisors is an integer number (2626260).

Almost surely, 2^20675087 is an apocalyptic number.

20675087 is a deficient number, since it is larger than the sum of its proper divisors (334993).

20675087 is a wasteful number, since it uses less digits than its factorization.

20675087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 20675087 is about 4546.9865845415. The cubic root of 20675087 is about 274.4621421066.

The spelling of 20675087 in words is "twenty million, six hundred seventy-five thousand, eighty-seven".