78580207 has 2 divisors, whose sum is σ = 78580208. Its totient is φ = 78580206.

The previous prime is 78580199. The next prime is 78580211. The reversal of 78580207 is 70208587.

It is a strong prime.

It is an emirp because it is prime and its reverse (70208587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78580207 - 2³ = 78580199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78580277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39290103 + 39290104.

It is an arithmetic number, because the mean of its divisors is an integer number (39290104).

Almost surely, 2^78580207 is an apocalyptic number.

78580207 is a deficient number, since it is larger than the sum of its proper divisors (1).

78580207 is an equidigital number, since it uses as much as digits as its factorization.

78580207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 78580207 is about 8864.5477606023. The cubic root of 78580207 is about 428.3226651628.

It can be divided in two parts, 78580 and 207, that added together give a palindrome (78787).

The spelling of 78580207 in words is "seventy-eight million, five hundred eighty thousand, two hundred seven".