65430730 has 8 divisors (see below), whose sum is σ = 117775332. Its totient is φ = 26172288.

The previous prime is 65430719. The next prime is 65430733. The reversal of 65430730 is 3703456.

It can be written as a sum of positive squares in 2 ways, for example, as 64432729 + 998001 = 8027^2 + 999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (65430733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271527 + ... + 3271546.

Almost surely, 2^65430730 is an apocalyptic number.

65430730 is a deficient number, since it is larger than the sum of its proper divisors (52344602).

65430730 is a wasteful number, since it uses less digits than its factorization.

65430730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543080.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 65430730 is about 8088.9263811707. The cubic root of 65430730 is about 402.9587480634.

The spelling of 65430730 in words is "sixty-five million, four hundred thirty thousand, seven hundred thirty".