48971645 has 16 divisors (see below), whose sum is σ = 65499840. Its totient is φ = 34930944.

The previous prime is 48971621. The next prime is 48971647. The reversal of 48971645 is 54617984.

It is a cyclic number.

It is not a de Polignac number, because 48971645 - 2¹² = 48967549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48971596 and 48971605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48971647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13547 + ... + 16776.

It is an arithmetic number, because the mean of its divisors is an integer number (4093740).

Almost surely, 2^48971645 is an apocalyptic number.

It is an amenable number.

48971645 is a deficient number, since it is larger than the sum of its proper divisors (16528195).

48971645 is a wasteful number, since it uses less digits than its factorization.

48971645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30364.

The product of its digits is 241920, while the sum is 44.

The square root of 48971645 is about 6997.9743497672. The cubic root of 48971645 is about 365.8599726117.

The spelling of 48971645 in words is "forty-eight million, nine hundred seventy-one thousand, six hundred forty-five".