65447394 has 16 divisors (see below), whose sum is σ = 132192000. Its totient is φ = 21599600.

The previous prime is 65447377. The next prime is 65447401. The reversal of 65447394 is 49374456.

It is a super-2 number, since 2×65447394² = 8566722762782472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53394 + ... + 54605.

It is an arithmetic number, because the mean of its divisors is an integer number (8262000).

Almost surely, 2^65447394 is an apocalyptic number.

65447394 is an abundant number, since it is smaller than the sum of its proper divisors (66744606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65447394 is a wasteful number, since it uses less digits than its factorization.

65447394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108105.

The product of its digits is 362880, while the sum is 42.

The square root of 65447394 is about 8089.9563657661. The cubic root of 65447394 is about 402.9929538798.

The spelling of 65447394 in words is "sixty-five million, four hundred forty-seven thousand, three hundred ninety-four".