842653487 has 4 divisors (see below), whose sum is σ = 907473000. Its totient is φ = 777833976.

The previous prime is 842653481. The next prime is 842653547. The reversal of 842653487 is 784356248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842653487 - 2¹² = 842649391 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 (842653481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32409737 + ... + 32409762.

It is an arithmetic number, because the mean of its divisors is an integer number (226868250).

Almost surely, 2^842653487 is an apocalyptic number.

842653487 is a deficient number, since it is larger than the sum of its proper divisors (64819513).

842653487 is a wasteful number, since it uses less digits than its factorization.

842653487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64819512.

The product of its digits is 1290240, while the sum is 47.

The square root of 842653487 is about 29028.4943977465. The cubic root of 842653487 is about 944.5312707682.

The spelling of 842653487 in words is "eight hundred forty-two million, six hundred fifty-three thousand, four hundred eighty-seven".