64620395 has 8 divisors (see below), whose sum is σ = 88622304. Its totient is φ = 44311104.

The previous prime is 64620379. The next prime is 64620401. The reversal of 64620395 is 59302646.

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 64620395 - 2⁴ = 64620379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1846297 = 64620395 / (6 + 4 + 6 + 2 + 0 + 3 + 9 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923114 + ... + 923183.

It is an arithmetic number, because the mean of its divisors is an integer number (11077788).

Almost surely, 2^64620395 is an apocalyptic number.

64620395 is a deficient number, since it is larger than the sum of its proper divisors (24001909).

64620395 is a wasteful number, since it uses less digits than its factorization.

64620395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846309.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 64620395 is about 8038.6811729288. The cubic root of 64620395 is about 401.2883356068.

The spelling of 64620395 in words is "sixty-four million, six hundred twenty thousand, three hundred ninety-five".