64922745 has 32 divisors (see below), whose sum is σ = 112347648. Its totient is φ = 31889408.

The previous prime is 64922743. The next prime is 64922761. The reversal of 64922745 is 54722946.

It is a cyclic number.

It is not a de Polignac number, because 64922745 - 2¹ = 64922743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64922743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9277 + ... + 14693.

It is an arithmetic number, because the mean of its divisors is an integer number (3510864).

Almost surely, 2^64922745 is an apocalyptic number.

It is an amenable number.

64922745 is a deficient number, since it is larger than the sum of its proper divisors (47424903).

64922745 is a wasteful number, since it uses less digits than its factorization.

64922745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489.

The product of its digits is 120960, while the sum is 39.

The square root of 64922745 is about 8057.4651721245. The cubic root of 64922745 is about 401.9132198017.

The spelling of 64922745 in words is "sixty-four million, nine hundred twenty-two thousand, seven hundred forty-five".