83439190 has 16 divisors (see below), whose sum is σ = 151023600. Its totient is φ = 33190560.

The previous prime is 83439143. The next prime is 83439199. The reversal of 83439190 is 9193438.

It is a super-2 number, since 2×83439190² = 13924196855712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83439199) 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, 21240 + ... + 24859.

It is an arithmetic number, because the mean of its divisors is an integer number (9438975).

Almost surely, 2^83439190 is an apocalyptic number.

83439190 is a deficient number, since it is larger than the sum of its proper divisors (67584410).

83439190 is a wasteful number, since it uses less digits than its factorization.

83439190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46287.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 83439190 is about 9134.5054600673. The cubic root of 83439190 is about 436.9751027433.

The spelling of 83439190 in words is "eighty-three million, four hundred thirty-nine thousand, one hundred ninety".