83998455 has 16 divisors (see below), whose sum is σ = 134559744. Its totient is φ = 44745120.

The previous prime is 83998441. The next prime is 83998459. The reversal of 83998455 is 55489938.

It is a happy number.

It is not a de Polignac number, because 83998455 - 2⁶ = 83998391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83998398 and 83998407.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11610 + ... + 17400.

It is an arithmetic number, because the mean of its divisors is an integer number (8409984).

Almost surely, 2^83998455 is an apocalyptic number.

83998455 is a deficient number, since it is larger than the sum of its proper divisors (50561289).

83998455 is a wasteful number, since it uses less digits than its factorization.

83998455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766.

The product of its digits is 1555200, while the sum is 51.

The square root of 83998455 is about 9165.0671028640. The cubic root of 83998455 is about 437.9492289100.

The spelling of 83998455 in words is "eighty-three million, nine hundred ninety-eight thousand, four hundred fifty-five".