64942463 has 2 divisors, whose sum is σ = 64942464. Its totient is φ = 64942462.

The previous prime is 64942439. The next prime is 64942477. The reversal of 64942463 is 36424946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64942463 - 2¹⁶ = 64876927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64942403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32471231 + 32471232.

It is an arithmetic number, because the mean of its divisors is an integer number (32471232).

Almost surely, 2^64942463 is an apocalyptic number.

64942463 is a deficient number, since it is larger than the sum of its proper divisors (1).

64942463 is an equidigital number, since it uses as much as digits as its factorization.

64942463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The square root of 64942463 is about 8058.6886650373. The cubic root of 64942463 is about 401.9539046839.

The spelling of 64942463 in words is "sixty-four million, nine hundred forty-two thousand, four hundred sixty-three".