64426726 has 32 divisors (see below), whose sum is σ = 124121088. Its totient is φ = 24377760.

The previous prime is 64426723. The next prime is 64426729. The reversal of 64426726 is 62762446.

It is an interprime number because it is at equal distance from previous prime (64426723) and next prime (64426729).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64426723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3510 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (3878784).

Almost surely, 2^64426726 is an apocalyptic number.

64426726 is a deficient number, since it is larger than the sum of its proper divisors (59694362).

64426726 is a wasteful number, since it uses less digits than its factorization.

64426726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436.

The product of its digits is 96768, while the sum is 37.

The square root of 64426726 is about 8026.6260657888. The cubic root of 64426726 is about 400.8870439286.

The spelling of 64426726 in words is "sixty-four million, four hundred twenty-six thousand, seven hundred twenty-six".