65893994 has 4 divisors (see below), whose sum is σ = 98840994. Its totient is φ = 32946996.

The previous prime is 65893991. The next prime is 65894009. The reversal of 65893994 is 49939856.

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

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 27615025 = 6187^2 + 5255^2 .

It is not an unprimeable number, because it can be changed into a prime (65893991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16473497 + ... + 16473500.

Almost surely, 2^65893994 is an apocalyptic number.

65893994 is a deficient number, since it is larger than the sum of its proper divisors (32947000).

65893994 is a wasteful number, since it uses less digits than its factorization.

65893994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32946999.

The product of its digits is 2099520, while the sum is 53.

The square root of 65893994 is about 8117.5115645129. The cubic root of 65893994 is about 403.9075246629.

The spelling of 65893994 in words is "sixty-five million, eight hundred ninety-three thousand, nine hundred ninety-four".