83954939 has 8 divisors (see below), whose sum is σ = 88543440. Its totient is φ = 79383456.

The previous prime is 83954933. The next prime is 83954947. The reversal of 83954939 is 93945938.

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

It is a cyclic number.

It is not a de Polignac number, because 83954939 - 2⁸ = 83954683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83954933) 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, 6617 + ... + 14549.

It is an arithmetic number, because the mean of its divisors is an integer number (11067930).

Almost surely, 2^83954939 is an apocalyptic number.

83954939 is a deficient number, since it is larger than the sum of its proper divisors (4588501).

83954939 is a wasteful number, since it uses less digits than its factorization.

83954939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509.

The product of its digits is 1049760, while the sum is 50.

The square root of 83954939 is about 9162.6927810551. The cubic root of 83954939 is about 437.8735882703.

Subtracting 83954939 from its reverse (93945938), we obtain a palindrome (9990999).

The spelling of 83954939 in words is "eighty-three million, nine hundred fifty-four thousand, nine hundred thirty-nine".