83506723 has 4 divisors (see below), whose sum is σ = 84753160. Its totient is φ = 82260288.

The previous prime is 83506711. The next prime is 83506751. The reversal of 83506723 is 32760538.

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 83506723 - 2²¹ = 81409571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83506793) 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, 623118 + ... + 623251.

It is an arithmetic number, because the mean of its divisors is an integer number (21188290).

Almost surely, 2^83506723 is an apocalyptic number.

83506723 is a deficient number, since it is larger than the sum of its proper divisors (1246437).

83506723 is a wasteful number, since it uses less digits than its factorization.

83506723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246436.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 83506723 is about 9138.2013000371. The cubic root of 83506723 is about 437.0929621554.

The spelling of 83506723 in words is "eighty-three million, five hundred six thousand, seven hundred twenty-three".