65430387 has 18 divisors (see below), whose sum is σ = 103885236. Its totient is φ = 39654120.

The previous prime is 65430373. The next prime is 65430403. The reversal of 65430387 is 78303456.

It is a happy number.

It is not a de Polignac number, because 65430387 - 2⁴ = 65430371 is a prime.

It is a super-2 number, since 2×65430387² = 8562271085939538, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (65430307) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28953 + ... + 31130.

It is an arithmetic number, because the mean of its divisors is an integer number (5771402).

Almost surely, 2^65430387 is an apocalyptic number.

65430387 is a deficient number, since it is larger than the sum of its proper divisors (38454849).

65430387 is a wasteful number, since it uses less digits than its factorization.

65430387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60111 (or 60097 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 65430387 is about 8088.9051793182. The cubic root of 65430387 is about 402.9580439341.

The spelling of 65430387 in words is "sixty-five million, four hundred thirty thousand, three hundred eighty-seven".