64147423 has 8 divisors (see below), whose sum is σ = 64945440. Its totient is φ = 63352800.

The previous prime is 64147403. The next prime is 64147427. The reversal of 64147423 is 32474146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64147423 - 2²¹ = 62050271 is a prime.

It is a super-2 number, since 2×64147423² = 8229783755081858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64147427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76038 + ... + 76876.

It is an arithmetic number, because the mean of its divisors is an integer number (8118180).

Almost surely, 2^64147423 is an apocalyptic number.

64147423 is a deficient number, since it is larger than the sum of its proper divisors (798017).

64147423 is a wasteful number, since it uses less digits than its factorization.

64147423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697.

The product of its digits is 16128, while the sum is 31.

The square root of 64147423 is about 8009.2086375621. The cubic root of 64147423 is about 400.3068957273.

The spelling of 64147423 in words is "sixty-four million, one hundred forty-seven thousand, four hundred twenty-three".