64748983 has 4 divisors (see below), whose sum is σ = 69729688. Its totient is φ = 59768280.

The previous prime is 64748917. The next prime is 64748989. The reversal of 64748983 is 38984746.

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

It is a de Polignac number, because none of the positive numbers 2^k-64748983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64748989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2490333 + ... + 2490358.

It is an arithmetic number, because the mean of its divisors is an integer number (17432422).

Almost surely, 2^64748983 is an apocalyptic number.

64748983 is a deficient number, since it is larger than the sum of its proper divisors (4980705).

64748983 is a wasteful number, since it uses less digits than its factorization.

64748983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980704.

The product of its digits is 1161216, while the sum is 49.

The square root of 64748983 is about 8046.6752761622. The cubic root of 64748983 is about 401.5543335448.

The spelling of 64748983 in words is "sixty-four million, seven hundred forty-eight thousand, nine hundred eighty-three".