83284657 has 4 divisors (see below), whose sum is σ = 87668080. Its totient is φ = 78901236.

The previous prime is 83284639. The next prime is 83284661. The reversal of 83284657 is 75648238.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75648238 = 2 ⋅37824119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83284657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83284457) 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, 2191683 + ... + 2191720.

It is an arithmetic number, because the mean of its divisors is an integer number (21917020).

Almost surely, 2^83284657 is an apocalyptic number.

It is an amenable number.

83284657 is a deficient number, since it is larger than the sum of its proper divisors (4383423).

83284657 is a wasteful number, since it uses less digits than its factorization.

83284657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383422.

The product of its digits is 322560, while the sum is 43.

The square root of 83284657 is about 9126.0427897309. The cubic root of 83284657 is about 436.7051704162.

The spelling of 83284657 in words is "eighty-three million, two hundred eighty-four thousand, six hundred fifty-seven".