64998283 has 4 divisors (see below), whose sum is σ = 74283760. Its totient is φ = 55712808.

The previous prime is 64998281. The next prime is 64998287. The reversal of 64998283 is 38289946.

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

It is a cyclic number.

It is not a de Polignac number, because 64998283 - 2¹ = 64998281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64998281) 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, 4642728 + ... + 4642741.

It is an arithmetic number, because the mean of its divisors is an integer number (18570940).

Almost surely, 2^64998283 is an apocalyptic number.

64998283 is a deficient number, since it is larger than the sum of its proper divisors (9285477).

64998283 is an equidigital number, since it uses as much as digits as its factorization.

64998283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285476.

The product of its digits is 746496, while the sum is 49.

The square root of 64998283 is about 8062.1512637757. The cubic root of 64998283 is about 402.0690355272.

The spelling of 64998283 in words is "sixty-four million, nine hundred ninety-eight thousand, two hundred eighty-three".