68620830 has 32 divisors (see below), whose sum is σ = 165413664. Its totient is φ = 18218496.

The previous prime is 68620817. The next prime is 68620843. The reversal of 68620830 is 3802686.

It is an interprime number because it is at equal distance from previous prime (68620817) and next prime (68620843).

It is a junction number, because it is equal to n+sod(n) for n = 68620791 and 68620800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (5169177).

Almost surely, 2^68620830 is an apocalyptic number.

68620830 is an abundant number, since it is smaller than the sum of its proper divisors (96792834).

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

68620830 is a wasteful number, since it uses less digits than its factorization.

68620830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68620830 is about 8283.7690696929. The cubic root of 68620830 is about 409.4039126871.

The spelling of 68620830 in words is "sixty-eight million, six hundred twenty thousand, eight hundred thirty".