83870885 has 8 divisors (see below), whose sum is σ = 115022976. Its totient is φ = 57511440.

The previous prime is 83870881. The next prime is 83870893. The reversal of 83870885 is 58807838.

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

It is not a de Polignac number, because 83870885 - 2² = 83870881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83870881) 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, 1198121 + ... + 1198190.

It is an arithmetic number, because the mean of its divisors is an integer number (14377872).

Almost surely, 2^83870885 is an apocalyptic number.

It is an amenable number.

83870885 is a deficient number, since it is larger than the sum of its proper divisors (31152091).

83870885 is a wasteful number, since it uses less digits than its factorization.

83870885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396323.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 83870885 is about 9158.1048803778. The cubic root of 83870885 is about 437.7274093928.

The spelling of 83870885 in words is "eighty-three million, eight hundred seventy thousand, eight hundred eighty-five".