258648947 has 2 divisors, whose sum is σ = 258648948. Its totient is φ = 258648946.

The previous prime is 258648937. The next prime is 258648991. The reversal of 258648947 is 749846852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258648947 - 2¹⁸ = 258386803 is a prime.

It is not a weakly prime, because it can be changed into another prime (258648917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129324473 + 129324474.

It is an arithmetic number, because the mean of its divisors is an integer number (129324474).

Almost surely, 2^258648947 is an apocalyptic number.

258648947 is a deficient number, since it is larger than the sum of its proper divisors (1).

258648947 is an equidigital number, since it uses as much as digits as its factorization.

258648947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 53.

The square root of 258648947 is about 16082.5665551242. The cubic root of 258648947 is about 637.1429835925.

The spelling of 258648947 in words is "two hundred fifty-eight million, six hundred forty-eight thousand, nine hundred forty-seven".