64944793 has 8 divisors (see below), whose sum is σ = 68713920. Its totient is φ = 61210800.

The previous prime is 64944787. The next prime is 64944799. The reversal of 64944793 is 39744946.

It is an interprime number because it is at equal distance from previous prime (64944787) and next prime (64944799).

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 64944793 - 2²⁵ = 31390361 is a prime.

It is a super-2 number, since 2×64944793² = 8435652275625698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64944799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4933 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (8589240).

Almost surely, 2^64944793 is an apocalyptic number.

It is an amenable number.

64944793 is a deficient number, since it is larger than the sum of its proper divisors (3769127).

64944793 is a wasteful number, since it uses less digits than its factorization.

64944793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17567.

The product of its digits is 653184, while the sum is 46.

The square root of 64944793 is about 8058.8332282037. The cubic root of 64944793 is about 401.9587117154.

The spelling of 64944793 in words is "sixty-four million, nine hundred forty-four thousand, seven hundred ninety-three".