64705801 has 4 divisors (see below), whose sum is σ = 64886400. Its totient is φ = 64525204.

The previous prime is 64705787. The next prime is 64705843. The reversal of 64705801 is 10850746.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10850746 = 2 ⋅5425373.

It is a cyclic number.

It is not a de Polignac number, because 64705801 - 2⁵ = 64705769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64705001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89761 + ... + 90478.

It is an arithmetic number, because the mean of its divisors is an integer number (16221600).

Almost surely, 2^64705801 is an apocalyptic number.

It is an amenable number.

64705801 is a deficient number, since it is larger than the sum of its proper divisors (180599).

64705801 is a wasteful number, since it uses less digits than its factorization.

64705801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180598.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 64705801 is about 8043.9916086480. The cubic root of 64705801 is about 401.4650462973.

The spelling of 64705801 in words is "sixty-four million, seven hundred five thousand, eight hundred one".