84978573 has 8 divisors (see below), whose sum is σ = 113670336. Its totient is φ = 56469600.

The previous prime is 84978571. The next prime is 84978577. The reversal of 84978573 is 37587948.

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

It is not a de Polignac number, because 84978573 - 2¹ = 84978571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84978571) 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, 44608 + ... + 46473.

It is an arithmetic number, because the mean of its divisors is an integer number (14208792).

Almost surely, 2^84978573 is an apocalyptic number.

It is an amenable number.

84978573 is a deficient number, since it is larger than the sum of its proper divisors (28691763).

84978573 is a wasteful number, since it uses less digits than its factorization.

84978573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91395.

The product of its digits is 1693440, while the sum is 51.

The square root of 84978573 is about 9218.3823418212. The cubic root of 84978573 is about 439.6460186720.

The spelling of 84978573 in words is "eighty-four million, nine hundred seventy-eight thousand, five hundred seventy-three".