64868738 has 8 divisors (see below), whose sum is σ = 106148880. Its totient is φ = 29485780.

The previous prime is 64868729. The next prime is 64868743. The reversal of 64868738 is 83786846.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474268 + ... + 1474311.

It is an arithmetic number, because the mean of its divisors is an integer number (13268610).

Almost surely, 2^64868738 is an apocalyptic number.

64868738 is a deficient number, since it is larger than the sum of its proper divisors (41280142).

64868738 is a wasteful number, since it uses less digits than its factorization.

64868738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948592.

The product of its digits is 1548288, while the sum is 50.

The square root of 64868738 is about 8054.1131107031. The cubic root of 64868738 is about 401.8017429538.

The spelling of 64868738 in words is "sixty-four million, eight hundred sixty-eight thousand, seven hundred thirty-eight".