258797862 has 16 divisors (see below), whose sum is σ = 575106480. Its totient is φ = 86265936.

The previous prime is 258797837. The next prime is 258797873. The reversal of 258797862 is 268797852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 4792553 = 258797862 / (2 + 5 + 8 + 7 + 9 + 7 + 8 + 6 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 258797799 and 258797808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2396223 + ... + 2396330.

It is an arithmetic number, because the mean of its divisors is an integer number (35944155).

Almost surely, 2^258797862 is an apocalyptic number.

258797862 is an abundant number, since it is smaller than the sum of its proper divisors (316308618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258797862 is a wasteful number, since it uses less digits than its factorization.

258797862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792564 (or 4792558 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 258797862 is about 16087.1955915256. The cubic root of 258797862 is about 637.2652367410.

The spelling of 258797862 in words is "two hundred fifty-eight million, seven hundred ninety-seven thousand, eight hundred sixty-two".