36881197 has 2 divisors, whose sum is σ = 36881198. Its totient is φ = 36881196.

The previous prime is 36881183. The next prime is 36881209. The reversal of 36881197 is 79118863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27815076 + 9066121 = 5274^2 + 3011^2 .

It is a cyclic number.

It is not a de Polignac number, because 36881197 - 2¹⁹ = 36356909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36881497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18440598 + 18440599.

It is an arithmetic number, because the mean of its divisors is an integer number (18440599).

Almost surely, 2^36881197 is an apocalyptic number.

It is an amenable number.

36881197 is a deficient number, since it is larger than the sum of its proper divisors (1).

36881197 is an equidigital number, since it uses as much as digits as its factorization.

36881197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 36881197 is about 6072.9891322149. The cubic root of 36881197 is about 332.8651559599.

The spelling of 36881197 in words is "thirty-six million, eight hundred eighty-one thousand, one hundred ninety-seven".