84739473 has 72 divisors (see below), whose sum is σ = 158551200. Its totient is φ = 44579808.

The previous prime is 84739471. The next prime is 84739477. The reversal of 84739473 is 37493748.

It is a happy number.

It is not a de Polignac number, because 84739473 - 2¹ = 84739471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84739471) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 223398 + ... + 223776.

It is an arithmetic number, because the mean of its divisors is an integer number (2202100).

Almost surely, 2^84739473 is an apocalyptic number.

It is an amenable number.

84739473 is a deficient number, since it is larger than the sum of its proper divisors (73811727).

84739473 is a wasteful number, since it uses less digits than its factorization.

84739473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 402 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 84739473 is about 9205.4045538477. The cubic root of 84739473 is about 439.2332946034.

The spelling of 84739473 in words is "eighty-four million, seven hundred thirty-nine thousand, four hundred seventy-three".