230999477 has 2 divisors, whose sum is σ = 230999478. Its totient is φ = 230999476.

The previous prime is 230999437. The next prime is 230999533. The reversal of 230999477 is 774999032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179533201 + 51466276 = 13399^2 + 7174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230999477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230999437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115499738 + 115499739.

It is an arithmetic number, because the mean of its divisors is an integer number (115499739).

Almost surely, 2^230999477 is an apocalyptic number.

It is an amenable number.

230999477 is a deficient number, since it is larger than the sum of its proper divisors (1).

230999477 is an equidigital number, since it uses as much as digits as its factorization.

230999477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 230999477 is about 15198.6669481241. Note that the first 3 decimals coincide. The cubic root of 230999477 is about 613.5787809039.

The spelling of 230999477 in words is "two hundred thirty million, nine hundred ninety-nine thousand, four hundred seventy-seven".