258983639 has 2 divisors, whose sum is σ = 258983640. Its totient is φ = 258983638.

The previous prime is 258983603. The next prime is 258983653. The reversal of 258983639 is 936389852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258983639 - 2¹⁶ = 258918103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258983689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129491819 + 129491820.

It is an arithmetic number, because the mean of its divisors is an integer number (129491820).

Almost surely, 2^258983639 is an apocalyptic number.

258983639 is a deficient number, since it is larger than the sum of its proper divisors (1).

258983639 is an equidigital number, since it uses as much as digits as its factorization.

258983639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 53.

The square root of 258983639 is about 16092.9686198663. The cubic root of 258983639 is about 637.4176863605.

The spelling of 258983639 in words is "two hundred fifty-eight million, nine hundred eighty-three thousand, six hundred thirty-nine".