67600728 has 48 divisors (see below), whose sum is σ = 197171520. Its totient is φ = 20799936.

The previous prime is 67600717. The next prime is 67600787. The reversal of 67600728 is 82700676.

It is a super-2 number, since 2×67600728² = 9139716852259968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 67600692 and 67600701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35176 + ... + 37047.

It is an arithmetic number, because the mean of its divisors is an integer number (4107740).

Almost surely, 2^67600728 is an apocalyptic number.

It is an amenable number.

67600728 is an abundant number, since it is smaller than the sum of its proper divisors (129570792).

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

67600728 is a wasteful number, since it uses less digits than its factorization.

67600728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72248 (or 72241 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 67600728 is about 8221.9661882058. The cubic root of 67600728 is about 407.3650735753.

The spelling of 67600728 in words is "sixty-seven million, six hundred thousand, seven hundred twenty-eight".