64673747 has 2 divisors, whose sum is σ = 64673748. Its totient is φ = 64673746.

The previous prime is 64673737. The next prime is 64673761. The reversal of 64673747 is 74737646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64673747 - 2⁴ = 64673731 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64673698 and 64673707.

It is not a weakly prime, because it can be changed into another prime (64673717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32336873 + 32336874.

It is an arithmetic number, because the mean of its divisors is an integer number (32336874).

Almost surely, 2^64673747 is an apocalyptic number.

64673747 is a deficient number, since it is larger than the sum of its proper divisors (1).

64673747 is an equidigital number, since it uses as much as digits as its factorization.

64673747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 44.

The square root of 64673747 is about 8041.9989430489. The cubic root of 64673747 is about 401.3987426793.

The spelling of 64673747 in words is "sixty-four million, six hundred seventy-three thousand, seven hundred forty-seven".