83487472 has 20 divisors (see below), whose sum is σ = 163975120. Its totient is φ = 41171328.

The previous prime is 83487449. The next prime is 83487473. The reversal of 83487472 is 27478438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83487473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34572 + ... + 36907.

It is an arithmetic number, because the mean of its divisors is an integer number (8198756).

Almost surely, 2^83487472 is an apocalyptic number.

It is an amenable number.

83487472 is a deficient number, since it is larger than the sum of its proper divisors (80487648).

83487472 is a wasteful number, since it uses less digits than its factorization.

83487472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71560 (or 71554 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 83487472 is about 9137.1479138733. The cubic root of 83487472 is about 437.0593715534.

The spelling of 83487472 in words is "eighty-three million, four hundred eighty-seven thousand, four hundred seventy-two".