64906753 has 4 divisors (see below), whose sum is σ = 64924848. Its totient is φ = 64888660.

The previous prime is 64906733. The next prime is 64906771. The reversal of 64906753 is 35760946.

64906753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64906753 - 2¹⁷ = 64775681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64906733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651 + ... + 11512.

It is an arithmetic number, because the mean of its divisors is an integer number (16231212).

Almost surely, 2^64906753 is an apocalyptic number.

It is an amenable number.

64906753 is a deficient number, since it is larger than the sum of its proper divisors (18095).

64906753 is a wasteful number, since it uses less digits than its factorization.

64906753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18094.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 64906753 is about 8056.4727393568. The cubic root of 64906753 is about 401.8802168635.

The spelling of 64906753 in words is "sixty-four million, nine hundred six thousand, seven hundred fifty-three".