83945269 has 8 divisors (see below), whose sum is σ = 90561240. Its totient is φ = 77515776.

The previous prime is 83945263. The next prime is 83945291. The reversal of 83945269 is 96254938.

It can be written as a sum of positive squares in 4 ways, for example, as 60062500 + 23882769 = 7750^2 + 4887^2 .

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 83945269 - 2⁵ = 83945237 is a prime.

It is a super-2 number, since 2×83945269² = 14093616374964722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83945263) 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, 45684 + ... + 47485.

It is an arithmetic number, because the mean of its divisors is an integer number (11320155).

Almost surely, 2^83945269 is an apocalyptic number.

It is an amenable number.

83945269 is a deficient number, since it is larger than the sum of its proper divisors (6615971).

83945269 is a wasteful number, since it uses less digits than its factorization.

83945269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93239.

The product of its digits is 466560, while the sum is 46.

The square root of 83945269 is about 9162.1650825555. The cubic root of 83945269 is about 437.8567760763.

The spelling of 83945269 in words is "eighty-three million, nine hundred forty-five thousand, two hundred sixty-nine".