65631093 has 16 divisors (see below), whose sum is σ = 96102912. Its totient is φ = 39510000.

The previous prime is 65631091. The next prime is 65631107. The reversal of 65631093 is 39013656.

It is not a de Polignac number, because 65631093 - 2¹ = 65631091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65631091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (6006432).

Almost surely, 2^65631093 is an apocalyptic number.

It is an amenable number.

65631093 is a deficient number, since it is larger than the sum of its proper divisors (30471819).

65631093 is a wasteful number, since it uses less digits than its factorization.

65631093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13336.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 65631093 is about 8101.3019324057. The cubic root of 65631093 is about 403.3696444477.

The spelling of 65631093 in words is "sixty-five million, six hundred thirty-one thousand, ninety-three".