68690706 has 32 divisors (see below), whose sum is σ = 158571648. Its totient is φ = 19430400.

The previous prime is 68690669. The next prime is 68690711. The reversal of 68690706 is 60709686.

It is a happy number.

It is a super-3 number, since 3×68690706³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3855 + ... + 12338.

It is an arithmetic number, because the mean of its divisors is an integer number (4955364).

Almost surely, 2^68690706 is an apocalyptic number.

68690706 is an abundant number, since it is smaller than the sum of its proper divisors (89880942).

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

68690706 is a wasteful number, since it uses less digits than its factorization.

68690706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16306.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 68690706 is about 8287.9856418795. The cubic root of 68690706 is about 409.5428297041.

It can be divided in two parts, 68690 and 706, that added together give a palindrome (69396).

The spelling of 68690706 in words is "sixty-eight million, six hundred ninety thousand, seven hundred six".