64967742 has 48 divisors (see below), whose sum is σ = 161347680. Its totient is φ = 18507456.

The previous prime is 64967719. The next prime is 64967767. The reversal of 64967742 is 24776946.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 63628 + ... + 64640.

It is an arithmetic number, because the mean of its divisors is an integer number (3361410).

Almost surely, 2^64967742 is an apocalyptic number.

64967742 is an abundant number, since it is smaller than the sum of its proper divisors (96379938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64967742 is a wasteful number, since it uses less digits than its factorization.

64967742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537 (or 1534 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 64967742 is about 8060.2569437953. The cubic root of 64967742 is about 402.0060517393.

The spelling of 64967742 in words is "sixty-four million, nine hundred sixty-seven thousand, seven hundred forty-two".