36446647 has 2 divisors, whose sum is σ = 36446648. Its totient is φ = 36446646.

The previous prime is 36446639. The next prime is 36446687. The reversal of 36446647 is 74664463.

It is an a-pointer prime, because the next prime (36446687) can be obtained adding 36446647 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36446647 - 2³ = 36446639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36446687) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18223323 + 18223324.

It is an arithmetic number, because the mean of its divisors is an integer number (18223324).

Almost surely, 2^36446647 is an apocalyptic number.

36446647 is a deficient number, since it is larger than the sum of its proper divisors (1).

36446647 is an equidigital number, since it uses as much as digits as its factorization.

36446647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 40.

The square root of 36446647 is about 6037.1058463472. The cubic root of 36446647 is about 331.5526678518.

The spelling of 36446647 in words is "thirty-six million, four hundred forty-six thousand, six hundred forty-seven".