65670723 has 16 divisors (see below), whose sum is σ = 97474560. Its totient is φ = 43697448.

The previous prime is 65670721. The next prime is 65670733. The reversal of 65670723 is 32707656.

It is a happy number.

65670723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65670723 - 2¹ = 65670721 is a prime.

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 (65670721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14386 + ... + 18392.

It is an arithmetic number, because the mean of its divisors is an integer number (6092160).

Almost surely, 2^65670723 is an apocalyptic number.

65670723 is a deficient number, since it is larger than the sum of its proper divisors (31803837).

65670723 is a wasteful number, since it uses less digits than its factorization.

65670723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623 (or 4617 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 65670723 is about 8103.7474664503. The cubic root of 65670723 is about 403.4508169624.

The spelling of 65670723 in words is "sixty-five million, six hundred seventy thousand, seven hundred twenty-three".