64828955 has 4 divisors (see below), whose sum is σ = 77794752. Its totient is φ = 51863160.

The previous prime is 64828943. The next prime is 64828963. The reversal of 64828955 is 55982846.

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

It is not a de Polignac number, because 64828955 - 2¹⁴ = 64812571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6482891 + ... + 6482900.

It is an arithmetic number, because the mean of its divisors is an integer number (19448688).

Almost surely, 2^64828955 is an apocalyptic number.

64828955 is a deficient number, since it is larger than the sum of its proper divisors (12965797).

64828955 is a wasteful number, since it uses less digits than its factorization.

64828955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965796.

The product of its digits is 691200, while the sum is 47.

The square root of 64828955 is about 8051.6430000342. The cubic root of 64828955 is about 401.7195865453.

The spelling of 64828955 in words is "sixty-four million, eight hundred twenty-eight thousand, nine hundred fifty-five".