47045427 has 16 divisors (see below), whose sum is σ = 73694208. Its totient is φ = 26318880.

The previous prime is 47045423. The next prime is 47045429. The reversal of 47045427 is 72454074.

It is not a de Polignac number, because 47045427 - 2² = 47045423 is a prime.

It is a super-2 number, since 2×47045427² = 4426544403224658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (47045423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54403 + ... + 55260.

It is an arithmetic number, because the mean of its divisors is an integer number (4605888).

Almost surely, 2^47045427 is an apocalyptic number.

47045427 is a deficient number, since it is larger than the sum of its proper divisors (26648781).

47045427 is a wasteful number, since it uses less digits than its factorization.

47045427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109690.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 47045427 is about 6858.9669047168. The cubic root of 47045427 is about 360.9988387611.

The spelling of 47045427 in words is "forty-seven million, forty-five thousand, four hundred twenty-seven".