65398733 has 4 divisors (see below), whose sum is σ = 65503008. Its totient is φ = 65294460.

The previous prime is 65398709. The next prime is 65398757. The reversal of 65398733 is 33789356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (65398709) and next prime (65398757).

It is a cyclic number.

It is not a de Polignac number, because 65398733 - 2⁸ = 65398477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65398783) 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, 51191 + ... + 52452.

It is an arithmetic number, because the mean of its divisors is an integer number (16375752).

Almost surely, 2^65398733 is an apocalyptic number.

It is an amenable number.

65398733 is a deficient number, since it is larger than the sum of its proper divisors (104275).

65398733 is a wasteful number, since it uses less digits than its factorization.

65398733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104274.

The product of its digits is 408240, while the sum is 44.

The square root of 65398733 is about 8086.9483119407. The cubic root of 65398733 is about 402.8930522588.

The spelling of 65398733 in words is "sixty-five million, three hundred ninety-eight thousand, seven hundred thirty-three".