948220993 has 4 divisors (see below), whose sum is σ = 970272688. Its totient is φ = 926169300.

The previous prime is 948220991. The next prime is 948221003. The reversal of 948220993 is 399022849.

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, and also an emirpimes, since its reverse is a distinct semiprime: 399022849 = 53 ⋅7528733.

It is a cyclic number.

It is not a de Polignac number, because 948220993 - 2¹ = 948220991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (948220991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11025783 + ... + 11025868.

It is an arithmetic number, because the mean of its divisors is an integer number (242568172).

Almost surely, 2^948220993 is an apocalyptic number.

It is an amenable number.

948220993 is a deficient number, since it is larger than the sum of its proper divisors (22051695).

948220993 is a wasteful number, since it uses less digits than its factorization.

948220993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22051694.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 948220993 is about 30793.1971870412. The cubic root of 948220993 is about 982.4335579990.

The spelling of 948220993 in words is "nine hundred forty-eight million, two hundred twenty thousand, nine hundred ninety-three".