78253627 has 2 divisors, whose sum is σ = 78253628. Its totient is φ = 78253626.

The previous prime is 78253621. The next prime is 78253633. The reversal of 78253627 is 72635287.

It is a balanced prime because it is at equal distance from previous prime (78253621) and next prime (78253633).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78253627 is a prime.

It is a super-2 number, since 2×78253627² = 12247260277310258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78253627.

It is not a weakly prime, because it can be changed into another prime (78253621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39126813 + 39126814.

It is an arithmetic number, because the mean of its divisors is an integer number (39126814).

Almost surely, 2^78253627 is an apocalyptic number.

78253627 is a deficient number, since it is larger than the sum of its proper divisors (1).

78253627 is an equidigital number, since it uses as much as digits as its factorization.

78253627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 78253627 is about 8846.1080142625. The cubic root of 78253627 is about 427.7284703774.

The spelling of 78253627 in words is "seventy-eight million, two hundred fifty-three thousand, six hundred twenty-seven".