83998456 has 8 divisors (see below), whose sum is σ = 157497120. Its totient is φ = 41999224.

The previous prime is 83998441. The next prime is 83998459. The reversal of 83998456 is 65489938.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×83998456² = 14111481220767872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83998459) 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 as a sum of consecutive naturals, namely, 5249896 + ... + 5249911.

It is an arithmetic number, because the mean of its divisors is an integer number (19687140).

Almost surely, 2^83998456 is an apocalyptic number.

It is an amenable number.

83998456 is a deficient number, since it is larger than the sum of its proper divisors (73498664).

83998456 is a wasteful number, since it uses less digits than its factorization.

83998456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499813 (or 10499809 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 83998456 is about 9165.0671574190. The cubic root of 83998456 is about 437.9492306479.

The spelling of 83998456 in words is "eighty-three million, nine hundred ninety-eight thousand, four hundred fifty-six".