422787111 has 8 divisors (see below), whose sum is σ = 569297904. Its totient is φ = 279067200.

The previous prime is 422787047. The next prime is 422787119. The reversal of 422787111 is 111787224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422787111 - 2⁶ = 422787047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422787119) 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, 697366 + ... + 697971.

It is an arithmetic number, because the mean of its divisors is an integer number (71162238).

Almost surely, 2^422787111 is an apocalyptic number.

422787111 is a deficient number, since it is larger than the sum of its proper divisors (146510793).

422787111 is a wasteful number, since it uses less digits than its factorization.

422787111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395441.

The product of its digits is 6272, while the sum is 33.

The square root of 422787111 is about 20561.7876411561. The cubic root of 422787111 is about 750.5401211544.

The spelling of 422787111 in words is "four hundred twenty-two million, seven hundred eighty-seven thousand, one hundred eleven".