427373633 has 2 divisors, whose sum is σ = 427373634. Its totient is φ = 427373632.

The previous prime is 427373579. The next prime is 427373663. The reversal of 427373633 is 336373724.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354305329 + 73068304 = 18823^2 + 8548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427373633 is a prime.

It is not a weakly prime, because it can be changed into another prime (427373663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213686816 + 213686817.

It is an arithmetic number, because the mean of its divisors is an integer number (213686817).

Almost surely, 2^427373633 is an apocalyptic number.

It is an amenable number.

427373633 is a deficient number, since it is larger than the sum of its proper divisors (1).

427373633 is an equidigital number, since it uses as much as digits as its factorization.

427373633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 38.

The square root of 427373633 is about 20673.0170270331. The cubic root of 427373633 is about 753.2443941564.

Subtracting from 427373633 its reverse (336373724), we obtain a palindrome (90999909).

The spelling of 427373633 in words is "four hundred twenty-seven million, three hundred seventy-three thousand, six hundred thirty-three".