20860075 has 12 divisors (see below), whose sum is σ = 26120848. Its totient is φ = 16524000.

The previous prime is 20860067. The next prime is 20860097. The reversal of 20860075 is 57006802.

It is not a de Polignac number, because 20860075 - 2³ = 20860067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1476 + ... + 6625.

Almost surely, 2^20860075 is an apocalyptic number.

20860075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20860075 is a deficient number, since it is larger than the sum of its proper divisors (5260773).

20860075 is a wasteful number, since it uses less digits than its factorization.

20860075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214 (or 8209 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20860075 is about 4567.2831092456. The cubic root of 20860075 is about 275.2782857873.

Adding to 20860075 its reverse (57006802), we get a palindrome (77866877).

The spelling of 20860075 in words is "twenty million, eight hundred sixty thousand, seventy-five".