258726763 has 2 divisors, whose sum is σ = 258726764. Its totient is φ = 258726762.

The previous prime is 258726709. The next prime is 258726799. The reversal of 258726763 is 367627852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258726763 - 2¹⁷ = 258595691 is a prime.

It is not a weakly prime, because it can be changed into another prime (258726263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129363381 + 129363382.

It is an arithmetic number, because the mean of its divisors is an integer number (129363382).

Almost surely, 2^258726763 is an apocalyptic number.

258726763 is a deficient number, since it is larger than the sum of its proper divisors (1).

258726763 is an equidigital number, since it uses as much as digits as its factorization.

258726763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 258726763 is about 16084.9856387875. The cubic root of 258726763 is about 637.2068732103.

The spelling of 258726763 in words is "two hundred fifty-eight million, seven hundred twenty-six thousand, seven hundred sixty-three".