84477079 has 2 divisors, whose sum is σ = 84477080. Its totient is φ = 84477078.

The previous prime is 84477067. The next prime is 84477089. The reversal of 84477079 is 97077448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84477079 - 2¹³ = 84468887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84477049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42238539 + 42238540.

It is an arithmetic number, because the mean of its divisors is an integer number (42238540).

Almost surely, 2^84477079 is an apocalyptic number.

84477079 is a deficient number, since it is larger than the sum of its proper divisors (1).

84477079 is an equidigital number, since it uses as much as digits as its factorization.

84477079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 84477079 is about 9191.1413328270. The cubic root of 84477079 is about 438.7794669646.

The spelling of 84477079 in words is "eighty-four million, four hundred seventy-seven thousand, seventy-nine".