64212047 has 2 divisors, whose sum is σ = 64212048. Its totient is φ = 64212046.

The previous prime is 64212007. The next prime is 64212053. The reversal of 64212047 is 74021246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64212047 - 2²² = 60017743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64212007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32106023 + 32106024.

It is an arithmetic number, because the mean of its divisors is an integer number (32106024).

Almost surely, 2^64212047 is an apocalyptic number.

64212047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64212047 is an equidigital number, since it uses as much as digits as its factorization.

64212047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 64212047 is about 8013.2419781260. The cubic root of 64212047 is about 400.4412775895.

The spelling of 64212047 in words is "sixty-four million, two hundred twelve thousand, forty-seven".