78676001 has 2 divisors, whose sum is σ = 78676002. Its totient is φ = 78676000.

The previous prime is 78675991. The next prime is 78676019. The reversal of 78676001 is 10067687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42915601 + 35760400 = 6551^2 + 5980^2 .

It is a cyclic number.

It is not a de Polignac number, because 78676001 - 2⁶ = 78675937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78676501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39338000 + 39338001.

It is an arithmetic number, because the mean of its divisors is an integer number (39338001).

Almost surely, 2^78676001 is an apocalyptic number.

It is an amenable number.

78676001 is a deficient number, since it is larger than the sum of its proper divisors (1).

78676001 is an equidigital number, since it uses as much as digits as its factorization.

78676001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 78676001 is about 8869.9493234178. The cubic root of 78676001 is about 428.4966448508.

The spelling of 78676001 in words is "seventy-eight million, six hundred seventy-six thousand, one".