20197035 has 24 divisors (see below), whose sum is σ = 35118720. Its totient is φ = 10737792.

The previous prime is 20197007. The next prime is 20197069. The reversal of 20197035 is 53079102.

It is not a de Polignac number, because 20197035 - 2⁷ = 20196907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21087 + ... + 22023.

It is an arithmetic number, because the mean of its divisors is an integer number (1463280).

Almost surely, 2^20197035 is an apocalyptic number.

20197035 is a deficient number, since it is larger than the sum of its proper divisors (14921685).

20197035 is a wasteful number, since it uses less digits than its factorization.

20197035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 20197035 is about 4494.1111468231. Note that the first 4 decimals coincide. The cubic root of 20197035 is about 272.3302424442.

The spelling of 20197035 in words is "twenty million, one hundred ninety-seven thousand, thirty-five".