64673734 has 16 divisors (see below), whose sum is σ = 98781696. Its totient is φ = 31752000.

The previous prime is 64673731. The next prime is 64673737. The reversal of 64673734 is 43737646.

It is an interprime number because it is at equal distance from previous prime (64673731) and next prime (64673737).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64673731) 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 7 ways as a sum of consecutive naturals, for example, 24394 + ... + 26914.

It is an arithmetic number, because the mean of its divisors is an integer number (6173856).

Almost surely, 2^64673734 is an apocalyptic number.

64673734 is a deficient number, since it is larger than the sum of its proper divisors (34107962).

64673734 is a wasteful number, since it uses less digits than its factorization.

64673734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751.

The product of its digits is 254016, while the sum is 40.

The square root of 64673734 is about 8041.9981347921. The cubic root of 64673734 is about 401.3987157844.

It can be divided in two parts, 6467 and 3734, that added together give a palindrome (10201).

The spelling of 64673734 in words is "sixty-four million, six hundred seventy-three thousand, seven hundred thirty-four".