36281779 has 2 divisors, whose sum is σ = 36281780. Its totient is φ = 36281778.

The previous prime is 36281771. The next prime is 36281789. The reversal of 36281779 is 97718263.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36281779 - 2³ = 36281771 is a prime.

It is not a weakly prime, because it can be changed into another prime (36281771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18140889 + 18140890.

It is an arithmetic number, because the mean of its divisors is an integer number (18140890).

Almost surely, 2^36281779 is an apocalyptic number.

36281779 is a deficient number, since it is larger than the sum of its proper divisors (1).

36281779 is an equidigital number, since it uses as much as digits as its factorization.

36281779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 36281779 is about 6023.4358135536. The cubic root of 36281779 is about 331.0519811391.

The spelling of 36281779 in words is "thirty-six million, two hundred eighty-one thousand, seven hundred seventy-nine".