83949481 has 24 divisors (see below), whose sum is σ = 106771392. Its totient is φ = 64123200.

The previous prime is 83949479. The next prime is 83949487. The reversal of 83949481 is 18494938.

It is not a de Polignac number, because 83949481 - 2¹ = 83949479 is a prime.

It is a super-2 number, since 2×83949481² = 14095030720338722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83949487) 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 23 ways as a sum of consecutive naturals, for example, 286371 + ... + 286663.

It is an arithmetic number, because the mean of its divisors is an integer number (4448808).

Almost surely, 2^83949481 is an apocalyptic number.

It is an amenable number.

83949481 is a deficient number, since it is larger than the sum of its proper divisors (22821911).

83949481 is a wasteful number, since it uses less digits than its factorization.

83949481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 372 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 83949481 is about 9162.3949380061. The cubic root of 83949481 is about 437.8640991886.

The spelling of 83949481 in words is "eighty-three million, nine hundred forty-nine thousand, four hundred eighty-one".