47223081 has 20 divisors (see below), whose sum is σ = 70954884. Its totient is φ = 31298400.

The previous prime is 47223079. The next prime is 47223083. The reversal of 47223081 is 18032274.

It is an interprime number because it is at equal distance from previous prime (47223079) and next prime (47223083).

It can be written as a sum of positive squares in 2 ways, for example, as 14561856 + 32661225 = 3816^2 + 5715^2 .

It is not a de Polignac number, because 47223081 - 2¹ = 47223079 is a prime.

It is a super-2 number, since 2×47223081² = 4460038758265122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (47223083) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13051 + ... + 16271.

Almost surely, 2^47223081 is an apocalyptic number.

It is an amenable number.

47223081 is a deficient number, since it is larger than the sum of its proper divisors (23731803).

47223081 is a wasteful number, since it uses less digits than its factorization.

47223081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 47223081 is about 6871.9051943402. The cubic root of 47223081 is about 361.4526719604.

The spelling of 47223081 in words is "forty-seven million, two hundred twenty-three thousand, eighty-one".