83245987 has 8 divisors (see below), whose sum is σ = 92527920. Its totient is φ = 74249760.

The previous prime is 83245963. The next prime is 83245999. The reversal of 83245987 is 78954238.

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

It is a cyclic number.

It is not a de Polignac number, because 83245987 - 2¹⁵ = 83213219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83245927) 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, 70812 + ... + 71977.

It is an arithmetic number, because the mean of its divisors is an integer number (11565990).

Almost surely, 2^83245987 is an apocalyptic number.

83245987 is a deficient number, since it is larger than the sum of its proper divisors (9281933).

83245987 is a wasteful number, since it uses less digits than its factorization.

83245987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142853.

The product of its digits is 483840, while the sum is 46.

The square root of 83245987 is about 9123.9238817518. The cubic root of 83245987 is about 436.6375709171.

The spelling of 83245987 in words is "eighty-three million, two hundred forty-five thousand, nine hundred eighty-seven".