84412557 has 16 divisors (see below), whose sum is σ = 125199360. Its totient is φ = 56210400.

The previous prime is 84412547. The next prime is 84412571. The reversal of 84412557 is 75521448.

It is not a de Polignac number, because 84412557 - 2¹¹ = 84410509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84412547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38932 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (7824960).

Almost surely, 2^84412557 is an apocalyptic number.

It is an amenable number.

84412557 is a deficient number, since it is larger than the sum of its proper divisors (40786803).

84412557 is a wasteful number, since it uses less digits than its factorization.

84412557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601 (or 3595 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 84412557 is about 9187.6306521322. The cubic root of 84412557 is about 438.6677280174.

The spelling of 84412557 in words is "eighty-four million, four hundred twelve thousand, five hundred fifty-seven".