68949650 has 48 divisors (see below), whose sum is σ = 159900480. Its totient is φ = 21489600.

The previous prime is 68949631. The next prime is 68949667. The reversal of 68949650 is 5694986.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68949595 and 68949604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5105 + ... + 12804.

It is an arithmetic number, because the mean of its divisors is an integer number (3331260).

Almost surely, 2^68949650 is an apocalyptic number.

68949650 is an abundant number, since it is smaller than the sum of its proper divisors (90950830).

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

68949650 is a wasteful number, since it uses less digits than its factorization.

68949650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939 (or 17934 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 68949650 is about 8303.5925959792. The cubic root of 68949650 is about 410.0568035515.

The spelling of 68949650 in words is "sixty-eight million, nine hundred forty-nine thousand, six hundred fifty".