84479557 has 8 divisors (see below), whose sum is σ = 89332992. Its totient is φ = 79759200.

The previous prime is 84479537. The next prime is 84479611. The reversal of 84479557 is 75597448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84479557 - 2¹¹ = 84477509 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 84479557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84479537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31963 + ... + 34504.

It is an arithmetic number, because the mean of its divisors is an integer number (11166624).

Almost surely, 2^84479557 is an apocalyptic number.

It is an amenable number.

84479557 is a deficient number, since it is larger than the sum of its proper divisors (4853435).

84479557 is a wasteful number, since it uses less digits than its factorization.

84479557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66539.

The product of its digits is 1411200, while the sum is 49.

The square root of 84479557 is about 9191.2761355538. The cubic root of 84479557 is about 438.7837572206.

The spelling of 84479557 in words is "eighty-four million, four hundred seventy-nine thousand, five hundred fifty-seven".