83421734 has 16 divisors (see below), whose sum is σ = 138433536. Its totient is φ = 37384200.

The previous prime is 83421731. The next prime is 83421739. The reversal of 83421734 is 43712438.

It is a self number, because there is not a number n which added to its sum of digits gives 83421734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83421731) 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, 25142 + ... + 28265.

It is an arithmetic number, because the mean of its divisors is an integer number (8652096).

Almost surely, 2^83421734 is an apocalyptic number.

83421734 is a deficient number, since it is larger than the sum of its proper divisors (55011802).

83421734 is a wasteful number, since it uses less digits than its factorization.

83421734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53491.

The product of its digits is 16128, while the sum is 32.

The square root of 83421734 is about 9133.5499122740. The cubic root of 83421734 is about 436.9446279773.

The spelling of 83421734 in words is "eighty-three million, four hundred twenty-one thousand, seven hundred thirty-four".