64730785 has 8 divisors (see below), whose sum is σ = 88773696. Its totient is φ = 44386800.

The previous prime is 64730761. The next prime is 64730801. The reversal of 64730785 is 58703746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64730785 - 2⁵ = 64730753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924691 + ... + 924760.

It is an arithmetic number, because the mean of its divisors is an integer number (11096712).

Almost surely, 2^64730785 is an apocalyptic number.

It is an amenable number.

64730785 is a deficient number, since it is larger than the sum of its proper divisors (24042911).

64730785 is a wasteful number, since it uses less digits than its factorization.

64730785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849463.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 64730785 is about 8045.5444191180. The cubic root of 64730785 is about 401.5167104546.

The spelling of 64730785 in words is "sixty-four million, seven hundred thirty thousand, seven hundred eighty-five".