36968381 has 2 divisors, whose sum is σ = 36968382. Its totient is φ = 36968380.

The previous prime is 36968363. The next prime is 36968411. The reversal of 36968381 is 18386963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21436900 + 15531481 = 4630^2 + 3941^2 .

It is a cyclic number.

It is not a de Polignac number, because 36968381 - 2⁶ = 36968317 is a prime.

It is a super-2 number, since 2×36968381² = 2733322387522322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36968311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18484190 + 18484191.

It is an arithmetic number, because the mean of its divisors is an integer number (18484191).

Almost surely, 2^36968381 is an apocalyptic number.

It is an amenable number.

36968381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36968381 is an equidigital number, since it uses as much as digits as its factorization.

36968381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 36968381 is about 6080.1629090017. The cubic root of 36968381 is about 333.1272378224.

The spelling of 36968381 in words is "thirty-six million, nine hundred sixty-eight thousand, three hundred eighty-one".