67780036 has 12 divisors (see below), whose sum is σ = 118676880. Its totient is φ = 33872360.

The previous prime is 67780033. The next prime is 67780051. The reversal of 67780036 is 63008776.

It is a super-2 number, since 2×67780036² = 9188266560322592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67779977 and 67780004.

It is not an unprimeable number, because it can be changed into a prime (67780033) 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 3 ways as a sum of consecutive naturals, for example, 8271 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (9889740).

Almost surely, 2^67780036 is an apocalyptic number.

It is an amenable number.

67780036 is a deficient number, since it is larger than the sum of its proper divisors (50896844).

67780036 is a wasteful number, since it uses less digits than its factorization.

67780036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834 (or 8832 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 67780036 is about 8232.8631714611. The cubic root of 67780036 is about 407.7249283280.

The spelling of 67780036 in words is "sixty-seven million, seven hundred eighty thousand, thirty-six".