36663247 has 2 divisors, whose sum is σ = 36663248. Its totient is φ = 36663246.

The previous prime is 36663239. The next prime is 36663251. The reversal of 36663247 is 74236663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36663247 - 2³ = 36663239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36663287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18331623 + 18331624.

It is an arithmetic number, because the mean of its divisors is an integer number (18331624).

Almost surely, 2^36663247 is an apocalyptic number.

36663247 is a deficient number, since it is larger than the sum of its proper divisors (1).

36663247 is an equidigital number, since it uses as much as digits as its factorization.

36663247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 37.

The square root of 36663247 is about 6055.0183319293. The cubic root of 36663247 is about 332.2081695147.

The spelling of 36663247 in words is "thirty-six million, six hundred sixty-three thousand, two hundred forty-seven".