230977791 has 32 divisors (see below), whose sum is σ = 383404800. Its totient is φ = 136196640.

The previous prime is 230977777. The next prime is 230977823. The reversal of 230977791 is 197779032.

It is not a de Polignac number, because 230977791 - 2¹⁷ = 230846719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230977711) 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 31 ways as a sum of consecutive naturals, for example, 480 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (11981400).

Almost surely, 2^230977791 is an apocalyptic number.

230977791 is a deficient number, since it is larger than the sum of its proper divisors (152427009).

230977791 is a wasteful number, since it uses less digits than its factorization.

230977791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21076 (or 21070 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The square root of 230977791 is about 15197.9535135491. The cubic root of 230977791 is about 613.5595795821.

The spelling of 230977791 in words is "two hundred thirty million, nine hundred seventy-seven thousand, seven hundred ninety-one".