83954169 has 48 divisors (see below), whose sum is σ = 136980480. Its totient is φ = 49196160.

The previous prime is 83954137. The next prime is 83954191. The reversal of 83954169 is 96145938.

It is a happy number.

It is not a de Polignac number, because 83954169 - 2⁵ = 83954137 is a prime.

It is a super-2 number, since 2×83954169² = 14096604984961122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83954119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286387 + ... + 286679.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 2^83954169 is an apocalyptic number.

83954169 is the 4898-th nonagonal number.

It is an amenable number.

83954169 is a deficient number, since it is larger than the sum of its proper divisors (53026311).

83954169 is a wasteful number, since it uses less digits than its factorization.

83954169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 419 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 83954169 is about 9162.6507627433. The cubic root of 83954169 is about 437.8722496010.

The spelling of 83954169 in words is "eighty-three million, nine hundred fifty-four thousand, one hundred sixty-nine".