48971091 has 16 divisors (see below), whose sum is σ = 72220064. Its totient is φ = 29320704.

The previous prime is 48971081. The next prime is 48971137. The reversal of 48971091 is 19017984.

It is a happy number.

It is not a de Polignac number, because 48971091 - 2¹¹ = 48969043 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48971081) 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, 15526 + ... + 18411.

It is an arithmetic number, because the mean of its divisors is an integer number (4513754).

Almost surely, 2^48971091 is an apocalyptic number.

48971091 is a deficient number, since it is larger than the sum of its proper divisors (23248973).

48971091 is a wasteful number, since it uses less digits than its factorization.

48971091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33990.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 48971091 is about 6997.9347667723. The cubic root of 48971091 is about 365.8585929889.

The spelling of 48971091 in words is "forty-eight million, nine hundred seventy-one thousand, ninety-one".