65983730 has 16 divisors (see below), whose sum is σ = 118917504. Its totient is φ = 26360880.

The previous prime is 65983727. The next prime is 65983733. The reversal of 65983730 is 3738956.

It is an interprime number because it is at equal distance from previous prime (65983727) and next prime (65983733).

It is not an unprimeable number, because it can be changed into a prime (65983733) 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 7 ways as a sum of consecutive naturals, for example, 5489 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (7432344).

Almost surely, 2^65983730 is an apocalyptic number.

65983730 is a deficient number, since it is larger than the sum of its proper divisors (52933774).

65983730 is a wasteful number, since it uses less digits than its factorization.

65983730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 65983730 is about 8123.0369936373. The cubic root of 65983730 is about 404.0907917699.

The spelling of 65983730 in words is "sixty-five million, nine hundred eighty-three thousand, seven hundred thirty".