64693742 has 8 divisors (see below), whose sum is σ = 97134600. Its totient is φ = 32315544.

The previous prime is 64693711. The next prime is 64693747. The reversal of 64693742 is 24739646.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64693742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64693747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12992 + ... + 17267.

It is an arithmetic number, because the mean of its divisors is an integer number (12141825).

Almost surely, 2^64693742 is an apocalyptic number.

64693742 is a deficient number, since it is larger than the sum of its proper divisors (32440858).

64693742 is a wasteful number, since it uses less digits than its factorization.

64693742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31330.

The product of its digits is 217728, while the sum is 41.

The square root of 64693742 is about 8043.2420080463. The cubic root of 64693742 is about 401.4401048562.

The spelling of 64693742 in words is "sixty-four million, six hundred ninety-three thousand, seven hundred forty-two".