65000431 has 4 divisors (see below), whose sum is σ = 65468200. Its totient is φ = 64532664.

The previous prime is 65000399. The next prime is 65000437. The reversal of 65000431 is 13400056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65000431 - 2⁵ = 65000399 is a prime.

It is a super-2 number, since 2×65000431² = 8450112060371522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65000399 and 65000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000437) 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, 233676 + ... + 233953.

It is an arithmetic number, because the mean of its divisors is an integer number (16367050).

Almost surely, 2^65000431 is an apocalyptic number.

65000431 is a deficient number, since it is larger than the sum of its proper divisors (467769).

65000431 is a wasteful number, since it uses less digits than its factorization.

65000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467768.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 65000431 is about 8062.2844777395. The cubic root of 65000431 is about 402.0734645404.

Adding to 65000431 its reverse (13400056), we get a palindrome (78400487).

The spelling of 65000431 in words is "sixty-five million, four hundred thirty-one", and thus it is an aban number.