65349993 has 16 divisors (see below), whose sum is σ = 89115840. Its totient is φ = 42584064.

The previous prime is 65349961. The next prime is 65350003. The reversal of 65349993 is 39994356.

It is a happy number.

It is not a de Polignac number, because 65349993 - 2⁵ = 65349961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65349913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33205 + ... + 35117.

It is an arithmetic number, because the mean of its divisors is an integer number (5569740).

Almost surely, 2^65349993 is an apocalyptic number.

It is an amenable number.

65349993 is a deficient number, since it is larger than the sum of its proper divisors (23765847).

65349993 is a wasteful number, since it uses less digits than its factorization.

65349993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168.

The product of its digits is 787320, while the sum is 48.

The square root of 65349993 is about 8083.9342525778. The cubic root of 65349993 is about 402.7929387612.

The spelling of 65349993 in words is "sixty-five million, three hundred forty-nine thousand, nine hundred ninety-three".