68455629 has 18 divisors (see below), whose sum is σ = 108688398. Its totient is φ = 41487600.

The previous prime is 68455601. The next prime is 68455637. The reversal of 68455629 is 92655486.

68455629 is a `hidden beast` number, since 6 + 84 + 5 + 562 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68062500 + 393129 = 8250^2 + 627^2 .

It is not a de Polignac number, because 68455629 - 2¹² = 68451533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68455649) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 30342 + ... + 32519.

Almost surely, 2^68455629 is an apocalyptic number.

It is an amenable number.

68455629 is a deficient number, since it is larger than the sum of its proper divisors (40232769).

68455629 is a wasteful number, since it uses less digits than its factorization.

68455629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62889 (or 62875 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 68455629 is about 8273.7916942597. The cubic root of 68455629 is about 409.0751093023.

The spelling of 68455629 in words is "sixty-eight million, four hundred fifty-five thousand, six hundred twenty-nine".