48861391 has 2 divisors, whose sum is σ = 48861392. Its totient is φ = 48861390.

The previous prime is 48861377. The next prime is 48861401. The reversal of 48861391 is 19316884.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48861391 - 2⁵ = 48861359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48861311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24430695 + 24430696.

It is an arithmetic number, because the mean of its divisors is an integer number (24430696).

Almost surely, 2^48861391 is an apocalyptic number.

48861391 is a deficient number, since it is larger than the sum of its proper divisors (1).

48861391 is an equidigital number, since it uses as much as digits as its factorization.

48861391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 48861391 is about 6990.0923455989. The cubic root of 48861391 is about 365.5852024864.

The spelling of 48861391 in words is "forty-eight million, eight hundred sixty-one thousand, three hundred ninety-one".