83434861 has 4 divisors (see below), whose sum is σ = 88342812. Its totient is φ = 78526912.

The previous prime is 83434847. The next prime is 83434873. The reversal of 83434861 is 16843438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72505225 + 10929636 = 8515^2 + 3306^2 .

It is a cyclic number.

It is not a de Polignac number, because 83434861 - 2⁵ = 83434829 is a prime.

It is a super-2 number, since 2×83434861² = 13922752060178642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83434861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83434261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453950 + ... + 2453983.

It is an arithmetic number, because the mean of its divisors is an integer number (22085703).

Almost surely, 2^83434861 is an apocalyptic number.

It is an amenable number.

83434861 is a deficient number, since it is larger than the sum of its proper divisors (4907951).

83434861 is a wasteful number, since it uses less digits than its factorization.

83434861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907950.

The product of its digits is 55296, while the sum is 37.

The square root of 83434861 is about 9134.2684983528. The cubic root of 83434861 is about 436.9675455513.

The spelling of 83434861 in words is "eighty-three million, four hundred thirty-four thousand, eight hundred sixty-one".