230978397 has 16 divisors (see below), whose sum is σ = 346082688. Its totient is φ = 135960000.

The previous prime is 230978387. The next prime is 230978411. The reversal of 230978397 is 793879032.

It is not a de Polignac number, because 230978397 - 2⁸ = 230978141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230978317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127854 + ... + 129647.

It is an arithmetic number, because the mean of its divisors is an integer number (21630168).

Almost surely, 2^230978397 is an apocalyptic number.

It is an amenable number.

230978397 is a deficient number, since it is larger than the sum of its proper divisors (115104291).

230978397 is a wasteful number, since it uses less digits than its factorization.

230978397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257540.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 230978397 is about 15197.9734504308. The cubic root of 230978397 is about 613.5601161659.

The spelling of 230978397 in words is "two hundred thirty million, nine hundred seventy-eight thousand, three hundred ninety-seven".