64847371 has 2 divisors, whose sum is σ = 64847372. Its totient is φ = 64847370.

The previous prime is 64847309. The next prime is 64847383. The reversal of 64847371 is 17374846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64847371 - 2¹¹ = 64845323 is a prime.

It is a super-2 number, since 2×64847371² = 8410363051223282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64857371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32423685 + 32423686.

It is an arithmetic number, because the mean of its divisors is an integer number (32423686).

Almost surely, 2^64847371 is an apocalyptic number.

64847371 is a deficient number, since it is larger than the sum of its proper divisors (1).

64847371 is an equidigital number, since it uses as much as digits as its factorization.

64847371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 64847371 is about 8052.7865363488. The cubic root of 64847371 is about 401.7576218517.

The spelling of 64847371 in words is "sixty-four million, eight hundred forty-seven thousand, three hundred seventy-one".