48644661 has 16 divisors (see below), whose sum is σ = 70507584. Its totient is φ = 29652864.

The previous prime is 48644657. The next prime is 48644663. The reversal of 48644661 is 16644684.

It is not a de Polignac number, because 48644661 - 2² = 48644657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48644663) 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, 1656 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (4406724).

Almost surely, 2^48644661 is an apocalyptic number.

It is an amenable number.

48644661 is a deficient number, since it is larger than the sum of its proper divisors (21862923).

48644661 is a wasteful number, since it uses less digits than its factorization.

48644661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780.

The product of its digits is 110592, while the sum is 39.

The square root of 48644661 is about 6974.5724600150. The cubic root of 48644661 is about 365.0438703758.

The spelling of 48644661 in words is "forty-eight million, six hundred forty-four thousand, six hundred sixty-one".