842316491 has 8 divisors (see below), whose sum is σ = 846858000. Its totient is φ = 837787392.

The previous prime is 842316481. The next prime is 842316521. The reversal of 842316491 is 194613248.

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 842316491 - 2⁶ = 842316427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842316401) 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, 153491 + ... + 158883.

It is an arithmetic number, because the mean of its divisors is an integer number (105857250).

Almost surely, 2^842316491 is an apocalyptic number.

842316491 is a deficient number, since it is larger than the sum of its proper divisors (4541509).

842316491 is a wasteful number, since it uses less digits than its factorization.

842316491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205.

The product of its digits is 41472, while the sum is 38.

The square root of 842316491 is about 29022.6892447960. The cubic root of 842316491 is about 944.4053409103.

The spelling of 842316491 in words is "eight hundred forty-two million, three hundred sixteen thousand, four hundred ninety-one".