48391897 has 4 divisors (see below), whose sum is σ = 48407040. Its totient is φ = 48376756.

The previous prime is 48391891. The next prime is 48391913. The reversal of 48391897 is 79819384.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48391897 - 2²³ = 40003289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48391897.

It is not an unprimeable number, because it can be changed into a prime (48391891) 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, 697 + ... + 9862.

It is an arithmetic number, because the mean of its divisors is an integer number (12101760).

Almost surely, 2^48391897 is an apocalyptic number.

It is an amenable number.

48391897 is a deficient number, since it is larger than the sum of its proper divisors (15143).

48391897 is a wasteful number, since it uses less digits than its factorization.

48391897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15142.

The product of its digits is 435456, while the sum is 49.

The square root of 48391897 is about 6956.4284658149. The cubic root of 48391897 is about 364.4105002350.

The spelling of 48391897 in words is "forty-eight million, three hundred ninety-one thousand, eight hundred ninety-seven".