47749245 has 16 divisors (see below), whose sum is σ = 76655040. Its totient is φ = 25380864.

The previous prime is 47749241. The next prime is 47749249. The reversal of 47749245 is 54294774.

It is an interprime number because it is at equal distance from previous prime (47749241) and next prime (47749249).

It is not a de Polignac number, because 47749245 - 2² = 47749241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47749197 and 47749206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47749241) 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, 580 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (4790940).

Almost surely, 2^47749245 is an apocalyptic number.

It is an amenable number.

47749245 is a deficient number, since it is larger than the sum of its proper divisors (28905795).

47749245 is a wasteful number, since it uses less digits than its factorization.

47749245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684.

The product of its digits is 282240, while the sum is 42.

The square root of 47749245 is about 6910.0828504440. The cubic root of 47749245 is about 362.7901632376.

The spelling of 47749245 in words is "forty-seven million, seven hundred forty-nine thousand, two hundred forty-five".