428148583 has 2 divisors, whose sum is σ = 428148584. Its totient is φ = 428148582.

The previous prime is 428148557. The next prime is 428148593. The reversal of 428148583 is 385841824.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428148583 is a prime.

It is a super-2 number, since 2×428148583² = 366622418249815778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428148593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214074291 + 214074292.

It is an arithmetic number, because the mean of its divisors is an integer number (214074292).

Almost surely, 2^428148583 is an apocalyptic number.

428148583 is a deficient number, since it is larger than the sum of its proper divisors (1).

428148583 is an equidigital number, since it uses as much as digits as its factorization.

428148583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245760, while the sum is 43.

The square root of 428148583 is about 20691.7515691640. The cubic root of 428148583 is about 753.6994013853.

The spelling of 428148583 in words is "four hundred twenty-eight million, one hundred forty-eight thousand, five hundred eighty-three".