47220047 has 8 divisors (see below), whose sum is σ = 54020736. Its totient is φ = 40433112.

The previous prime is 47220023. The next prime is 47220071. The reversal of 47220047 is 74002274.

It is an interprime number because it is at equal distance from previous prime (47220023) and next prime (47220071).

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

It is a cyclic number.

It is not a de Polignac number, because 47220047 - 2²⁴ = 30442831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47219998 and 47220025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47220077) 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, 5468 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (6752592).

Almost surely, 2^47220047 is an apocalyptic number.

47220047 is a deficient number, since it is larger than the sum of its proper divisors (6800689).

47220047 is a wasteful number, since it uses less digits than its factorization.

47220047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 47220047 is about 6871.6844368757. The cubic root of 47220047 is about 361.4449308949. Note that the first 3 decimals are identical.

The spelling of 47220047 in words is "forty-seven million, two hundred twenty thousand, forty-seven".