78479 has 2 divisors, whose sum is σ = 78480. Its totient is φ = 78478.

The previous prime is 78467. The next prime is 78487. The reversal of 78479 is 97487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78479 - 2¹² = 74383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39239 + 39240.

It is an arithmetic number, because the mean of its divisors is an integer number (39240).

2⁷⁸⁴⁷⁹ is an apocalyptic number.

78479 is a deficient number, since it is larger than the sum of its proper divisors (1).

78479 is an equidigital number, since it uses as much as digits as its factorization.

78479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The square root of 78479 is about 280.1410359087. The cubic root of 78479 is about 42.8138700789.

The spelling of 78479 in words is "seventy-eight thousand, four hundred seventy-nine".