36398779 has 2 divisors, whose sum is σ = 36398780. Its totient is φ = 36398778.

The previous prime is 36398777. The next prime is 36398797. The reversal of 36398779 is 97789363.

Together with next prime (36398797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36398779 - 2¹ = 36398777 is a prime.

It is a super-2 number, since 2×36398779² = 2649742225381682, which contains 22 as substring.

Together with 36398777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36398777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18199389 + 18199390.

It is an arithmetic number, because the mean of its divisors is an integer number (18199390).

Almost surely, 2^36398779 is an apocalyptic number.

36398779 is a deficient number, since it is larger than the sum of its proper divisors (1).

36398779 is an equidigital number, since it uses as much as digits as its factorization.

36398779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 52.

The square root of 36398779 is about 6033.1400613611. The cubic root of 36398779 is about 331.4074536135.

The spelling of 36398779 in words is "thirty-six million, three hundred ninety-eight thousand, seven hundred seventy-nine".