78463277 has 2 divisors, whose sum is σ = 78463278. Its totient is φ = 78463276.

The previous prime is 78463271. The next prime is 78463283. The reversal of 78463277 is 77236487.

It is a balanced prime because it is at equal distance from previous prime (78463271) and next prime (78463283).

It can be written as a sum of positive squares in only one way, i.e., 65060356 + 13402921 = 8066^2 + 3661^2 .

It is a cyclic number.

It is not a de Polignac number, because 78463277 - 2⁶ = 78463213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78463271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39231638 + 39231639.

It is an arithmetic number, because the mean of its divisors is an integer number (39231639).

Almost surely, 2^78463277 is an apocalyptic number.

It is an amenable number.

78463277 is a deficient number, since it is larger than the sum of its proper divisors (1).

78463277 is an equidigital number, since it uses as much as digits as its factorization.

78463277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 44.

The square root of 78463277 is about 8857.9499321231. The cubic root of 78463277 is about 428.1101068362.

The spelling of 78463277 in words is "seventy-eight million, four hundred sixty-three thousand, two hundred seventy-seven".