942863881 has 4 divisors (see below), whose sum is σ = 964790992. Its totient is φ = 920936772.

The previous prime is 942863879. The next prime is 942863899. The reversal of 942863881 is 188368249.

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, and also an emirpimes, since its reverse is a distinct semiprime: 188368249 = 617 ⋅305297.

It is a cyclic number.

It is not a de Polignac number, because 942863881 - 2¹ = 942863879 is a prime.

It is a super-2 number, since 2×942863881² = 1777984596188764322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (942869881) 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, 10963491 + ... + 10963576.

It is an arithmetic number, because the mean of its divisors is an integer number (241197748).

Almost surely, 2^942863881 is an apocalyptic number.

It is an amenable number.

942863881 is a deficient number, since it is larger than the sum of its proper divisors (21927111).

942863881 is a wasteful number, since it uses less digits than its factorization.

942863881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21927110.

The product of its digits is 663552, while the sum is 49.

The square root of 942863881 is about 30706.0886633254. The cubic root of 942863881 is about 980.5799292067.

The spelling of 942863881 in words is "nine hundred forty-two million, eight hundred sixty-three thousand, eight hundred eighty-one".