83887470 has 48 divisors (see below), whose sum is σ = 229591440. Its totient is φ = 21192192.

The previous prime is 83887421. The next prime is 83887477. The reversal of 83887470 is 7478838.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83887477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22819 + ... + 26238.

It is an arithmetic number, because the mean of its divisors is an integer number (4783155).

Almost surely, 2^83887470 is an apocalyptic number.

83887470 is an abundant number, since it is smaller than the sum of its proper divisors (145703970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83887470 is a wasteful number, since it uses less digits than its factorization.

83887470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49089 (or 49086 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 83887470 is about 9159.0103177145. The cubic root of 83887470 is about 437.7562602096.

The spelling of 83887470 in words is "eighty-three million, eight hundred eighty-seven thousand, four hundred seventy".