68787258 has 32 divisors (see below), whose sum is σ = 148357440. Its totient is φ = 21191040.

The previous prime is 68787241. The next prime is 68787263. The reversal of 68787258 is 85278786.

It is a self number, because there is not a number n which added to its sum of digits gives 68787258.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (4636170).

Almost surely, 2^68787258 is an apocalyptic number.

68787258 is an abundant number, since it is smaller than the sum of its proper divisors (79570182).

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

68787258 is a wasteful number, since it uses less digits than its factorization.

68787258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14782.

The product of its digits is 1505280, while the sum is 51.

The square root of 68787258 is about 8293.8084135094. The cubic root of 68787258 is about 409.7346250195.

The spelling of 68787258 in words is "sixty-eight million, seven hundred eighty-seven thousand, two hundred fifty-eight".