842830949 has 4 divisors (see below), whose sum is σ = 845031936. Its totient is φ = 840629964.

The previous prime is 842830943. The next prime is 842830951. The reversal of 842830949 is 949038248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 842830949 - 2⁸ = 842830693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842830943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099919 + ... + 1100684.

It is an arithmetic number, because the mean of its divisors is an integer number (211257984).

Almost surely, 2^842830949 is an apocalyptic number.

It is an amenable number.

842830949 is a deficient number, since it is larger than the sum of its proper divisors (2200987).

842830949 is a wasteful number, since it uses less digits than its factorization.

842830949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200986.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 842830949 is about 29031.5509230906. The cubic root of 842830949 is about 944.5975719013.

The spelling of 842830949 in words is "eight hundred forty-two million, eight hundred thirty thousand, nine hundred forty-nine".