230091977 has 4 divisors (see below), whose sum is σ = 240096000. Its totient is φ = 220087956.

The previous prime is 230091971. The next prime is 230092001. The reversal of 230091977 is 779190032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230091977 - 2¹⁰ = 230090953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230091977.

It is not an unprimeable number, because it can be changed into a prime (230091971) 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 3 ways as a sum of consecutive naturals, for example, 5001977 + ... + 5002022.

It is an arithmetic number, because the mean of its divisors is an integer number (60024000).

Almost surely, 2^230091977 is an apocalyptic number.

It is an amenable number.

230091977 is a deficient number, since it is larger than the sum of its proper divisors (10004023).

230091977 is a wasteful number, since it uses less digits than its factorization.

230091977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004022.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 230091977 is about 15168.7829768904. The cubic root of 230091977 is about 612.7742285576.

The spelling of 230091977 in words is "two hundred thirty million, ninety-one thousand, nine hundred seventy-seven".