68403772 has 6 divisors (see below), whose sum is σ = 119706608. Its totient is φ = 34201884.

The previous prime is 68403739. The next prime is 68403773. The reversal of 68403772 is 27730486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68403773) 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 as a sum of consecutive naturals, namely, 8550468 + ... + 8550475.

Almost surely, 2^68403772 is an apocalyptic number.

It is an amenable number.

68403772 is a deficient number, since it is larger than the sum of its proper divisors (51302836).

68403772 is a wasteful number, since it uses less digits than its factorization.

68403772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17100947 (or 17100945 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 68403772 is about 8270.6572894783. The cubic root of 68403772 is about 408.9717880362.

The spelling of 68403772 in words is "sixty-eight million, four hundred three thousand, seven hundred seventy-two".