48721971 has 4 divisors (see below), whose sum is σ = 64962632. Its totient is φ = 32481312.

The previous prime is 48721969. The next prime is 48721973. The reversal of 48721971 is 17912784.

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

It is an interprime number because it is at equal distance from previous prime (48721969) and next prime (48721973).

It is not a de Polignac number, because 48721971 - 2¹ = 48721969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48721973) 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, 8120326 + ... + 8120331.

It is an arithmetic number, because the mean of its divisors is an integer number (16240658).

Almost surely, 2^48721971 is an apocalyptic number.

48721971 is a deficient number, since it is larger than the sum of its proper divisors (16240661).

48721971 is a wasteful number, since it uses less digits than its factorization.

48721971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240660.

The product of its digits is 28224, while the sum is 39.

The square root of 48721971 is about 6980.1125349094. The cubic root of 48721971 is about 365.2371536919.

The spelling of 48721971 in words is "forty-eight million, seven hundred twenty-one thousand, nine hundred seventy-one".