64008723 has 16 divisors (see below), whose sum is σ = 91514880. Its totient is φ = 39651456.

The previous prime is 64008719. The next prime is 64008727. The reversal of 64008723 is 32780046.

It is an interprime number because it is at equal distance from previous prime (64008719) and next prime (64008727).

It is not a de Polignac number, because 64008723 - 2² = 64008719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64008727) 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, 3915 + ... + 11972.

It is an arithmetic number, because the mean of its divisors is an integer number (5719680).

Almost surely, 2^64008723 is an apocalyptic number.

64008723 is a deficient number, since it is larger than the sum of its proper divisors (27506157).

64008723 is a wasteful number, since it uses less digits than its factorization.

64008723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15986.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64008723 is about 8000.5451689244. The cubic root of 64008723 is about 400.0181720911.

Adding to 64008723 its reverse (32780046), we get a palindrome (96788769).

The spelling of 64008723 in words is "sixty-four million, eight thousand, seven hundred twenty-three".