64430275 has 48 divisors (see below), whose sum is σ = 99549184. Its totient is φ = 40279680.

The previous prime is 64430263. The next prime is 64430287. The reversal of 64430275 is 57203446.

64430275 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 (64430263) and next prime (64430287).

It is not a de Polignac number, because 64430275 - 2⁹ = 64429763 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 288814 + ... + 289036.

Almost surely, 2^64430275 is an apocalyptic number.

64430275 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64430275 is a deficient number, since it is larger than the sum of its proper divisors (35118909).

64430275 is a wasteful number, since it uses less digits than its factorization.

64430275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 64430275 is about 8026.8471394440. The cubic root of 64430275 is about 400.8944048593.

The spelling of 64430275 in words is "sixty-four million, four hundred thirty thousand, two hundred seventy-five".