83873549 has 4 divisors (see below), whose sum is σ = 84243264. Its totient is φ = 83503836.

The previous prime is 83873527. The next prime is 83873551. The reversal of 83873549 is 94537838.

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 83873549 - 2¹² = 83869453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83873509) 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, 184517 + ... + 184970.

It is an arithmetic number, because the mean of its divisors is an integer number (21060816).

Almost surely, 2^83873549 is an apocalyptic number.

It is an amenable number.

83873549 is a deficient number, since it is larger than the sum of its proper divisors (369715).

83873549 is a wasteful number, since it uses less digits than its factorization.

83873549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369714.

The product of its digits is 725760, while the sum is 47.

The square root of 83873549 is about 9158.2503241613. The cubic root of 83873549 is about 437.7320438714.

The spelling of 83873549 in words is "eighty-three million, eight hundred seventy-three thousand, five hundred forty-nine".