83490015 has 32 divisors (see below), whose sum is σ = 155266560. Its totient is φ = 37517184.

The previous prime is 83489993. The next prime is 83490031. The reversal of 83490015 is 51009438.

It is not a de Polignac number, because 83490015 - 2⁵ = 83489983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544 + ... + 12933.

It is an arithmetic number, because the mean of its divisors is an integer number (4852080).

Almost surely, 2^83490015 is an apocalyptic number.

83490015 is a deficient number, since it is larger than the sum of its proper divisors (71776545).

83490015 is a wasteful number, since it uses less digits than its factorization.

83490015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13551.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 83490015 is about 9137.2870700225. The cubic root of 83490015 is about 437.0638090683.

The spelling of 83490015 in words is "eighty-three million, four hundred ninety thousand, fifteen".