83894469 has 4 divisors (see below), whose sum is σ = 111859296. Its totient is φ = 55929644.

The previous prime is 83894449. The next prime is 83894471. The reversal of 83894469 is 96449838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83894469 - 2⁷ = 83894341 is a prime.

It is a super-2 number, since 2×83894469² = 14076563857583922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83894449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13982409 + ... + 13982414.

It is an arithmetic number, because the mean of its divisors is an integer number (27964824).

Almost surely, 2^83894469 is an apocalyptic number.

It is an amenable number.

83894469 is a deficient number, since it is larger than the sum of its proper divisors (27964827).

83894469 is a wasteful number, since it uses less digits than its factorization.

83894469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27964826.

The product of its digits is 1492992, while the sum is 51.

The square root of 83894469 is about 9159.3923925116. The cubic root of 83894469 is about 437.7684343394.

The spelling of 83894469 in words is "eighty-three million, eight hundred ninety-four thousand, four hundred sixty-nine".