68694770 has 16 divisors (see below), whose sum is σ = 123825240. Its totient is φ = 27439104.

The previous prime is 68694757. The next prime is 68694781. The reversal of 68694770 is 7749686.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43784689 + 24910081 = 6617^2 + 4991^2 .

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 7 ways as a sum of consecutive naturals, for example, 3224 + ... + 12156.

Almost surely, 2^68694770 is an apocalyptic number.

68694770 is a deficient number, since it is larger than the sum of its proper divisors (55130470).

68694770 is a wasteful number, since it uses less digits than its factorization.

68694770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9709.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 68694770 is about 8288.2308124231. The cubic root of 68694770 is about 409.5509062419.

The spelling of 68694770 in words is "sixty-eight million, six hundred ninety-four thousand, seven hundred seventy".