78754651 has 2 divisors, whose sum is σ = 78754652. Its totient is φ = 78754650.

The previous prime is 78754619. The next prime is 78754673. The reversal of 78754651 is 15645787.

It is a strong prime.

It is an emirp because it is prime and its reverse (15645787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78754651 - 2⁵ = 78754619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78754598 and 78754607.

It is not a weakly prime, because it can be changed into another prime (78854651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39377325 + 39377326.

It is an arithmetic number, because the mean of its divisors is an integer number (39377326).

Almost surely, 2^78754651 is an apocalyptic number.

78754651 is a deficient number, since it is larger than the sum of its proper divisors (1).

78754651 is an equidigital number, since it uses as much as digits as its factorization.

78754651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 43.

The square root of 78754651 is about 8874.3817249429. The cubic root of 78754651 is about 428.6393823094.

The spelling of 78754651 in words is "seventy-eight million, seven hundred fifty-four thousand, six hundred fifty-one".