84036557 has 12 divisors (see below), whose sum is σ = 92772288. Its totient is φ = 76065000.

The previous prime is 84036551. The next prime is 84036569. The reversal of 84036557 is 75563048.

It is not a de Polignac number, because 84036557 - 2⁸ = 84036301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84036557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84036551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28988 + ... + 31754.

It is an arithmetic number, because the mean of its divisors is an integer number (7731024).

Almost surely, 2^84036557 is an apocalyptic number.

It is an amenable number.

84036557 is a deficient number, since it is larger than the sum of its proper divisors (8735731).

84036557 is a wasteful number, since it uses less digits than its factorization.

84036557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 84036557 is about 9167.1455208260. The cubic root of 84036557 is about 438.0154373464.

The spelling of 84036557 in words is "eighty-four million, thirty-six thousand, five hundred fifty-seven".