65840074 has 4 divisors (see below), whose sum is σ = 98760114. Its totient is φ = 32920036.

The previous prime is 65840069. The next prime is 65840083. The reversal of 65840074 is 47004856.

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., 36517849 + 29322225 = 6043^2 + 5415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16460017 + ... + 16460020.

Almost surely, 2^65840074 is an apocalyptic number.

65840074 is a deficient number, since it is larger than the sum of its proper divisors (32920040).

65840074 is a wasteful number, since it uses less digits than its factorization.

65840074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32920039.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 65840074 is about 8114.1896699547. The cubic root of 65840074 is about 403.7973242461.

The spelling of 65840074 in words is "sixty-five million, eight hundred forty thousand, seventy-four".