36378649 has 2 divisors, whose sum is σ = 36378650. Its totient is φ = 36378648.

The previous prime is 36378637. The next prime is 36378653. The reversal of 36378649 is 94687363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 6051600 = 5507^2 + 2460^2 .

It is an emirp because it is prime and its reverse (94687363) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36378649 is a prime.

It is a super-2 number, since 2×36378649² = 2646812206130402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36378599 and 36378608.

It is not a weakly prime, because it can be changed into another prime (36378679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18189324 + 18189325.

It is an arithmetic number, because the mean of its divisors is an integer number (18189325).

Almost surely, 2^36378649 is an apocalyptic number.

It is an amenable number.

36378649 is a deficient number, since it is larger than the sum of its proper divisors (1).

36378649 is an equidigital number, since it uses as much as digits as its factorization.

36378649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 36378649 is about 6031.4715451538. The cubic root of 36378649 is about 331.3463484297.

The spelling of 36378649 in words is "thirty-six million, three hundred seventy-eight thousand, six hundred forty-nine".