64231479 has 24 divisors (see below), whose sum is σ = 104264160. Its totient is φ = 37806912.

The previous prime is 64231477. The next prime is 64231481. The reversal of 64231479 is 97413246.

64231479 is a `hidden beast` number, since 642 + 3 + 1 + 4 + 7 + 9 = 666.

64231479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64231477) and next prime (64231481).

It is not a de Polignac number, because 64231479 - 2¹ = 64231477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64231477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9244 + ... + 14625.

It is an arithmetic number, because the mean of its divisors is an integer number (4344340).

Almost surely, 2^64231479 is an apocalyptic number.

64231479 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

64231479 is a deficient number, since it is larger than the sum of its proper divisors (40032681).

64231479 is a wasteful number, since it uses less digits than its factorization.

64231479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911 (or 23908 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 64231479 is about 8014.4543794322. The cubic root of 64231479 is about 400.4816676745.

The spelling of 64231479 in words is "sixty-four million, two hundred thirty-one thousand, four hundred seventy-nine".