84723472 has 10 divisors (see below), whose sum is σ = 164151758. Its totient is φ = 42361728.

The previous prime is 84723439. The next prime is 84723473. The reversal of 84723472 is 27432748.

It can be written as a sum of positive squares in only one way, i.e., 83832336 + 891136 = 9156^2 + 944^2 .

It is not an unprimeable number, because it can be changed into a prime (84723473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2647593 + ... + 2647624.

Almost surely, 2^84723472 is an apocalyptic number.

It is an amenable number.

84723472 is a deficient number, since it is larger than the sum of its proper divisors (79428286).

84723472 is a wasteful number, since it uses less digits than its factorization.

84723472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5295225 (or 5295219 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 84723472 is about 9204.5354038104. The cubic root of 84723472 is about 439.2056466682.

The spelling of 84723472 in words is "eighty-four million, seven hundred twenty-three thousand, four hundred seventy-two".