842672815 has 8 divisors (see below), whose sum is σ = 1017263520. Its totient is φ = 670100832.

The previous prime is 842672797. The next prime is 842672821. The reversal of 842672815 is 518276248.

It is a happy number.

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 842672815 - 2²⁷ = 708455087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503760 + ... + 505429.

It is an arithmetic number, because the mean of its divisors is an integer number (127157940).

Almost surely, 2^842672815 is an apocalyptic number.

842672815 is a deficient number, since it is larger than the sum of its proper divisors (174590705).

842672815 is a wasteful number, since it uses less digits than its factorization.

842672815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009361.

The product of its digits is 215040, while the sum is 43.

The square root of 842672815 is about 29028.8273101068. The cubic root of 842672815 is about 944.5384923055.

The spelling of 842672815 in words is "eight hundred forty-two million, six hundred seventy-two thousand, eight hundred fifteen".