83430605 has 8 divisors (see below), whose sum is σ = 101488632. Its totient is φ = 65829888.

The previous prime is 83430601. The next prime is 83430623. The reversal of 83430605 is 50603438.

It can be written as a sum of positive squares in 4 ways, for example, as 292681 + 83137924 = 541^2 + 9118^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83430605 - 2² = 83430601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83430601) 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, 113924 + ... + 114653.

It is an arithmetic number, because the mean of its divisors is an integer number (12686079).

Almost surely, 2^83430605 is an apocalyptic number.

It is an amenable number.

83430605 is a deficient number, since it is larger than the sum of its proper divisors (18058027).

83430605 is a wasteful number, since it uses less digits than its factorization.

83430605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228655.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 83430605 is about 9134.0355265348. The cubic root of 83430605 is about 436.9601155416.

The spelling of 83430605 in words is "eighty-three million, four hundred thirty thousand, six hundred five".