36631949 has 2 divisors, whose sum is σ = 36631950. Its totient is φ = 36631948.

The previous prime is 36631937. The next prime is 36631997. The reversal of 36631949 is 94913663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24255625 + 12376324 = 4925^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 36631949 - 2¹² = 36627853 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 (36631909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18315974 + 18315975.

It is an arithmetic number, because the mean of its divisors is an integer number (18315975).

Almost surely, 2^36631949 is an apocalyptic number.

It is an amenable number.

36631949 is a deficient number, since it is larger than the sum of its proper divisors (1).

36631949 is an equidigital number, since it uses as much as digits as its factorization.

36631949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 36631949 is about 6052.4333123133. The cubic root of 36631949 is about 332.1136115020.

The spelling of 36631949 in words is "thirty-six million, six hundred thirty-one thousand, nine hundred forty-nine".