64996493 has 2 divisors, whose sum is σ = 64996494. Its totient is φ = 64996492.

The previous prime is 64996469. The next prime is 64996501. The reversal of 64996493 is 39469946.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63952009 + 1044484 = 7997^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 64996493 - 2⁸ = 64996237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64996793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32498246 + 32498247.

It is an arithmetic number, because the mean of its divisors is an integer number (32498247).

Almost surely, 2^64996493 is an apocalyptic number.

It is an amenable number.

64996493 is a deficient number, since it is larger than the sum of its proper divisors (1).

64996493 is an equidigital number, since it uses as much as digits as its factorization.

64996493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The square root of 64996493 is about 8062.0402504577. The cubic root of 64996493 is about 402.0653446082.

The spelling of 64996493 in words is "sixty-four million, nine hundred ninety-six thousand, four hundred ninety-three".