83993970 has 32 divisors (see below), whose sum is σ = 201984192. Its totient is φ = 22354112.

The previous prime is 83993963. The next prime is 83993971. The reversal of 83993970 is 7939938.

It is not an unprimeable number, because it can be changed into a prime (83993971) 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 15 ways as a sum of consecutive naturals, for example, 14404 + ... + 19376.

It is an arithmetic number, because the mean of its divisors is an integer number (6312006).

Almost surely, 2^83993970 is an apocalyptic number.

83993970 is an abundant number, since it is smaller than the sum of its proper divisors (117990222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83993970 is a wasteful number, since it uses less digits than its factorization.

83993970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 83993970 is about 9164.8224205382. The cubic root of 83993970 is about 437.9414341744.

The spelling of 83993970 in words is "eighty-three million, nine hundred ninety-three thousand, nine hundred seventy".