64103995 has 4 divisors (see below), whose sum is σ = 76924800. Its totient is φ = 51283192.

The previous prime is 64103989. The next prime is 64104011. The reversal of 64103995 is 59930146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64103995 is a prime.

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, 6410395 + ... + 6410404.

It is an arithmetic number, because the mean of its divisors is an integer number (19231200).

Almost surely, 2^64103995 is an apocalyptic number.

64103995 is a deficient number, since it is larger than the sum of its proper divisors (12820805).

64103995 is a wasteful number, since it uses less digits than its factorization.

64103995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12820804.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 64103995 is about 8006.4970492719. The cubic root of 64103995 is about 400.2165390060.

Subtracting from 64103995 its reverse (59930146), we obtain a square (4173849 = 2043²).

The spelling of 64103995 in words is "sixty-four million, one hundred three thousand, nine hundred ninety-five".