64797945 has 8 divisors (see below), whose sum is σ = 103676736. Its totient is φ = 34558896.

The previous prime is 64797907. The next prime is 64797949. The reversal of 64797945 is 54979746.

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

It is not a de Polignac number, because 64797945 - 2⁶ = 64797881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64797949) 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, 2159917 + ... + 2159946.

It is an arithmetic number, because the mean of its divisors is an integer number (12959592).

Almost surely, 2^64797945 is an apocalyptic number.

It is an amenable number.

64797945 is a deficient number, since it is larger than the sum of its proper divisors (38878791).

64797945 is a wasteful number, since it uses less digits than its factorization.

64797945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319871.

The product of its digits is 1905120, while the sum is 51.

The square root of 64797945 is about 8049.7170757735. The cubic root of 64797945 is about 401.6555240639.

The spelling of 64797945 in words is "sixty-four million, seven hundred ninety-seven thousand, nine hundred forty-five".