83471749 has 4 divisors (see below), whose sum is σ = 84717664. Its totient is φ = 82225836.

The previous prime is 83471723. The next prime is 83471797. The reversal of 83471749 is 94717438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83471749 - 2⁷ = 83471621 is a prime.

It is a super-2 number, since 2×83471749² = 13935065762238002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83471849) 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, 622857 + ... + 622990.

It is an arithmetic number, because the mean of its divisors is an integer number (21179416).

Almost surely, 2^83471749 is an apocalyptic number.

It is an amenable number.

83471749 is a deficient number, since it is larger than the sum of its proper divisors (1245915).

83471749 is a wasteful number, since it uses less digits than its factorization.

83471749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245914.

The product of its digits is 169344, while the sum is 43.

The square root of 83471749 is about 9136.2874845311. The cubic root of 83471749 is about 437.0319330417.

The spelling of 83471749 in words is "eighty-three million, four hundred seventy-one thousand, seven hundred forty-nine".