47222919 has 24 divisors (see below), whose sum is σ = 71062992. Its totient is φ = 31337280.

The previous prime is 47222911. The next prime is 47222927. The reversal of 47222919 is 91922274.

It is an interprime number because it is at equal distance from previous prime (47222911) and next prime (47222927).

It is not a de Polignac number, because 47222919 - 2³ = 47222911 is a prime.

It is a super-2 number, since 2×47222919² = 4460008157761122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47222911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90379 + ... + 90899.

It is an arithmetic number, because the mean of its divisors is an integer number (2960958).

Almost surely, 2^47222919 is an apocalyptic number.

47222919 is a deficient number, since it is larger than the sum of its proper divisors (23840073).

47222919 is an equidigital number, since it uses as much as digits as its factorization.

47222919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 897 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 47222919 is about 6871.8934072059. The cubic root of 47222919 is about 361.4522586357.

The spelling of 47222919 in words is "forty-seven million, two hundred twenty-two thousand, nine hundred nineteen".