36668147 has 4 divisors (see below), whose sum is σ = 37659216. Its totient is φ = 35677080.

The previous prime is 36668143. The next prime is 36668153. The reversal of 36668147 is 74186663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36668147 - 2² = 36668143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36668143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495479 + ... + 495552.

It is an arithmetic number, because the mean of its divisors is an integer number (9414804).

Almost surely, 2^36668147 is an apocalyptic number.

36668147 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

36668147 is a deficient number, since it is larger than the sum of its proper divisors (991069).

36668147 is an equidigital number, since it uses as much as digits as its factorization.

36668147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991068.

The product of its digits is 145152, while the sum is 41.

The square root of 36668147 is about 6055.4229414633. The cubic root of 36668147 is about 332.2229685996. Note that the first 3 decimals are identical.

The spelling of 36668147 in words is "thirty-six million, six hundred sixty-eight thousand, one hundred forty-seven".