948391 has 2 divisors, whose sum is σ = 948392. Its totient is φ = 948390.

The previous prime is 948377. The next prime is 948401. The reversal of 948391 is 193849.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 948391 - 2⁷ = 948263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474195 + 474196.

It is an arithmetic number, because the mean of its divisors is an integer number (474196).

2⁹⁴⁸³⁹¹ is an apocalyptic number.

948391 is a deficient number, since it is larger than the sum of its proper divisors (1).

948391 is an equidigital number, since it uses as much as digits as its factorization.

948391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 948391 is about 973.8536851088. The cubic root of 948391 is about 98.2492268153.

It can be divided in two parts, 9 and 48391, that added together give a square (48400 = 220²).

The spelling of 948391 in words is "nine hundred forty-eight thousand, three hundred ninety-one".