86774407 has 2 divisors, whose sum is σ = 86774408. Its totient is φ = 86774406.

The previous prime is 86774399. The next prime is 86774411. The reversal of 86774407 is 70447768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86774407 - 2³ = 86774399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86774417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43387203 + 43387204.

It is an arithmetic number, because the mean of its divisors is an integer number (43387204).

Almost surely, 2^86774407 is an apocalyptic number.

86774407 is a deficient number, since it is larger than the sum of its proper divisors (1).

86774407 is an equidigital number, since it uses as much as digits as its factorization.

86774407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 86774407 is about 9315.2781493630. The cubic root of 86774407 is about 442.7214370430.

The spelling of 86774407 in words is "eighty-six million, seven hundred seventy-four thousand, four hundred seven".