48939731 has 4 divisors (see below), whose sum is σ = 50518464. Its totient is φ = 47361000.

The previous prime is 48939721. The next prime is 48939743. The reversal of 48939731 is 13793984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48939731 - 2²² = 44745427 is a prime.

It is a super-2 number, since 2×48939731² = 4790194540704722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48939721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789320 + ... + 789381.

It is an arithmetic number, because the mean of its divisors is an integer number (12629616).

Almost surely, 2^48939731 is an apocalyptic number.

48939731 is a deficient number, since it is larger than the sum of its proper divisors (1578733).

48939731 is a wasteful number, since it uses less digits than its factorization.

48939731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578732.

The product of its digits is 163296, while the sum is 44.

The square root of 48939731 is about 6995.6937468703. The cubic root of 48939731 is about 365.7804804046.

The spelling of 48939731 in words is "forty-eight million, nine hundred thirty-nine thousand, seven hundred thirty-one".