65904465 has 32 divisors (see below), whose sum is σ = 116019072. Its totient is φ = 31944000.

The previous prime is 65904463. The next prime is 65904467. The reversal of 65904465 is 56440956.

It is an interprime number because it is at equal distance from previous prime (65904463) and next prime (65904467).

It is not a de Polignac number, because 65904465 - 2¹ = 65904463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65904463) 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 in 31 ways as a sum of consecutive naturals, for example, 18315 + ... + 21615.

It is an arithmetic number, because the mean of its divisors is an integer number (3625596).

Almost surely, 2^65904465 is an apocalyptic number.

It is an amenable number.

65904465 is a deficient number, since it is larger than the sum of its proper divisors (50114607).

65904465 is a wasteful number, since it uses less digits than its factorization.

65904465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3320 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 65904465 is about 8118.1565025565. The cubic root of 65904465 is about 403.9289180729.

The spelling of 65904465 in words is "sixty-five million, nine hundred four thousand, four hundred sixty-five".