36642847 has 2 divisors, whose sum is σ = 36642848. Its totient is φ = 36642846.

The previous prime is 36642833. The next prime is 36642917. The reversal of 36642847 is 74824663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36642847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36642647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18321423 + 18321424.

It is an arithmetic number, because the mean of its divisors is an integer number (18321424).

Almost surely, 2^36642847 is an apocalyptic number.

36642847 is a deficient number, since it is larger than the sum of its proper divisors (1).

36642847 is an equidigital number, since it uses as much as digits as its factorization.

36642847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 36642847 is about 6053.3335444200. Note that the first 3 decimals coincide. The cubic root of 36642847 is about 332.1465428217.

The spelling of 36642847 in words is "thirty-six million, six hundred forty-two thousand, eight hundred forty-seven".