64061723 has 4 divisors (see below), whose sum is σ = 69885528. Its totient is φ = 58237920.

The previous prime is 64061707. The next prime is 64061731. The reversal of 64061723 is 32716046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64061723 - 2⁴ = 64061707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64061743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2911886 + ... + 2911907.

It is an arithmetic number, because the mean of its divisors is an integer number (17471382).

Almost surely, 2^64061723 is an apocalyptic number.

64061723 is a deficient number, since it is larger than the sum of its proper divisors (5823805).

64061723 is a wasteful number, since it uses less digits than its factorization.

64061723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5823804.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 64061723 is about 8003.8567578387. The cubic root of 64061723 is about 400.1285482673.

Adding to 64061723 its reverse (32716046), we get a palindrome (96777769).

The spelling of 64061723 in words is "sixty-four million, sixty-one thousand, seven hundred twenty-three".