77283379 has 2 divisors, whose sum is σ = 77283380. Its totient is φ = 77283378.

The previous prime is 77283373. The next prime is 77283383. The reversal of 77283379 is 97338277.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77283379 - 2¹¹ = 77281331 is a prime.

It is not a weakly prime, because it can be changed into another prime (77283373) 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, 38641689 + 38641690.

It is an arithmetic number, because the mean of its divisors is an integer number (38641690).

Almost surely, 2^77283379 is an apocalyptic number.

77283379 is a deficient number, since it is larger than the sum of its proper divisors (1).

77283379 is an equidigital number, since it uses as much as digits as its factorization.

77283379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 46.

The square root of 77283379 is about 8791.0965755132. The cubic root of 77283379 is about 425.9533459308.

It can be divided in two parts, 7728337 and 9, that added together give a triangular number (7728346 = T₃₉₃₁).

The spelling of 77283379 in words is "seventy-seven million, two hundred eighty-three thousand, three hundred seventy-nine".