236428971 has 16 divisors (see below), whose sum is σ = 325908480. Its totient is φ = 152300160.

The previous prime is 236428961. The next prime is 236428991. The reversal of 236428971 is 179824632.

It is not a de Polignac number, because 236428971 - 2⁵ = 236428939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (236428901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74995 + ... + 78083.

It is an arithmetic number, because the mean of its divisors is an integer number (20369280).

Almost surely, 2^236428971 is an apocalyptic number.

236428971 is a deficient number, since it is larger than the sum of its proper divisors (89479509).

236428971 is a wasteful number, since it uses less digits than its factorization.

236428971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its digits is 145152, while the sum is 42.

The square root of 236428971 is about 15376.2469738230. The cubic root of 236428971 is about 618.3488593895.

The spelling of 236428971 in words is "two hundred thirty-six million, four hundred twenty-eight thousand, nine hundred seventy-one".