78282707 has 2 divisors, whose sum is σ = 78282708. Its totient is φ = 78282706.

The previous prime is 78282697. The next prime is 78282727. The reversal of 78282707 is 70728287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78282707 - 2⁴ = 78282691 is a prime.

It is a super-2 number, since 2×78282707² = 12256364430495698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78282727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39141353 + 39141354.

It is an arithmetic number, because the mean of its divisors is an integer number (39141354).

Almost surely, 2^78282707 is an apocalyptic number.

78282707 is a deficient number, since it is larger than the sum of its proper divisors (1).

78282707 is an equidigital number, since it uses as much as digits as its factorization.

78282707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 78282707 is about 8847.7515222795. The cubic root of 78282707 is about 427.7814468505.

The spelling of 78282707 in words is "seventy-eight million, two hundred eighty-two thousand, seven hundred seven".