83389655 has 4 divisors (see below), whose sum is σ = 100067592. Its totient is φ = 66711720.

The previous prime is 83389577. The next prime is 83389667. The reversal of 83389655 is 55698338.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55698338 = 2 ⋅27849169.

It is not a de Polignac number, because 83389655 - 2¹² = 83385559 is a prime.

It is a super-2 number, since 2×83389655² = 13907669122038050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8338961 + ... + 8338970.

It is an arithmetic number, because the mean of its divisors is an integer number (25016898).

Almost surely, 2^83389655 is an apocalyptic number.

83389655 is a deficient number, since it is larger than the sum of its proper divisors (16677937).

83389655 is a wasteful number, since it uses less digits than its factorization.

83389655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677936.

The product of its digits is 777600, while the sum is 47.

The square root of 83389655 is about 9131.7936354256. The cubic root of 83389655 is about 436.8886132231. Note that the first 3 decimals are identical.

The spelling of 83389655 in words is "eighty-three million, three hundred eighty-nine thousand, six hundred fifty-five".