64725743 has 2 divisors, whose sum is σ = 64725744. Its totient is φ = 64725742.

The previous prime is 64725719. The next prime is 64725763. The reversal of 64725743 is 34752746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64725743 - 2⁶ = 64725679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64725697 and 64725706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64725763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32362871 + 32362872.

It is an arithmetic number, because the mean of its divisors is an integer number (32362872).

Almost surely, 2^64725743 is an apocalyptic number.

64725743 is a deficient number, since it is larger than the sum of its proper divisors (1).

64725743 is an equidigital number, since it uses as much as digits as its factorization.

64725743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 38.

The square root of 64725743 is about 8045.2310718835. The cubic root of 64725743 is about 401.5062852254.

The spelling of 64725743 in words is "sixty-four million, seven hundred twenty-five thousand, seven hundred forty-three".