64293983 has 8 divisors (see below), whose sum is σ = 73312848. Its totient is φ = 55857024.

The previous prime is 64293973. The next prime is 64293989. The reversal of 64293983 is 38939246.

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 64293983 - 2¹⁶ = 64228447 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 (64293989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145241 + ... + 145682.

It is an arithmetic number, because the mean of its divisors is an integer number (9164106).

Almost surely, 2^64293983 is an apocalyptic number.

64293983 is a deficient number, since it is larger than the sum of its proper divisors (9018865).

64293983 is a wasteful number, since it uses less digits than its factorization.

64293983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290953.

The product of its digits is 279936, while the sum is 44.

The square root of 64293983 is about 8018.3528857241. The cubic root of 64293983 is about 400.6115291870.

The spelling of 64293983 in words is "sixty-four million, two hundred ninety-three thousand, nine hundred eighty-three".