48639731 has 8 divisors (see below), whose sum is σ = 55636224. Its totient is φ = 41655240.

The previous prime is 48639727. The next prime is 48639749. The reversal of 48639731 is 13793684.

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 48639731 - 2² = 48639727 is a prime.

It is a super-2 number, since 2×48639731² = 4731646863504722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48639761) 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, 8786 + ... + 13208.

It is an arithmetic number, because the mean of its divisors is an integer number (6954528).

Almost surely, 2^48639731 is an apocalyptic number.

48639731 is a deficient number, since it is larger than the sum of its proper divisors (6996493).

48639731 is a wasteful number, since it uses less digits than its factorization.

48639731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001.

The product of its digits is 108864, while the sum is 41.

The square root of 48639731 is about 6974.2190243783. The cubic root of 48639731 is about 365.0315379016.

The spelling of 48639731 in words is "forty-eight million, six hundred thirty-nine thousand, seven hundred thirty-one".