83491723 has 8 divisors (see below), whose sum is σ = 95521760. Its totient is φ = 71487360.

The previous prime is 83491699. The next prime is 83491729. The reversal of 83491723 is 32719438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83491723 - 2⁵ = 83491691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83491729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 12973.

It is an arithmetic number, because the mean of its divisors is an integer number (11940220).

Almost surely, 2^83491723 is an apocalyptic number.

83491723 is a deficient number, since it is larger than the sum of its proper divisors (12030037).

83491723 is a wasteful number, since it uses less digits than its factorization.

83491723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12837.

The product of its digits is 36288, while the sum is 37.

The square root of 83491723 is about 9137.3805327348. The cubic root of 83491723 is about 437.0667894642.

The spelling of 83491723 in words is "eighty-three million, four hundred ninety-one thousand, seven hundred twenty-three".