64936445 has 8 divisors (see below), whose sum is σ = 89055744. Its totient is φ = 44527824.

The previous prime is 64936439. The next prime is 64936463. The reversal of 64936445 is 54463946.

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

It is a cyclic number.

It is not a de Polignac number, because 64936445 - 2⁶ = 64936381 is a prime.

It is a Duffinian number.

It is a congruent 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, 927629 + ... + 927698.

It is an arithmetic number, because the mean of its divisors is an integer number (11131968).

Almost surely, 2^64936445 is an apocalyptic number.

It is an amenable number.

64936445 is a deficient number, since it is larger than the sum of its proper divisors (24119299).

64936445 is a wasteful number, since it uses less digits than its factorization.

64936445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855339.

The product of its digits is 311040, while the sum is 41.

The square root of 64936445 is about 8058.3152705761. The cubic root of 64936445 is about 401.9414883941.

The spelling of 64936445 in words is "sixty-four million, nine hundred thirty-six thousand, four hundred forty-five".