67780396 has 6 divisors (see below), whose sum is σ = 118615700. Its totient is φ = 33890196.

The previous prime is 67780387. The next prime is 67780397. The reversal of 67780396 is 69308776.

It is not an unprimeable number, because it can be changed into a prime (67780397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472546 + ... + 8472553.

Almost surely, 2^67780396 is an apocalyptic number.

It is an amenable number.

67780396 is a deficient number, since it is larger than the sum of its proper divisors (50835304).

67780396 is a wasteful number, since it uses less digits than its factorization.

67780396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16945103 (or 16945101 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 67780396 is about 8232.8850350287. The cubic root of 67780396 is about 407.7256501763.

The spelling of 67780396 in words is "sixty-seven million, seven hundred eighty thousand, three hundred ninety-six".