427626733 has 2 divisors, whose sum is σ = 427626734. Its totient is φ = 427626732.

The previous prime is 427626697. The next prime is 427626743. The reversal of 427626733 is 337626724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426133449 + 1493284 = 20643^2 + 1222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427626733 is a prime.

It is equal to p_22728586 and since 427626733 and 22728586 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427626743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213813366 + 213813367.

It is an arithmetic number, because the mean of its divisors is an integer number (213813367).

Almost surely, 2^427626733 is an apocalyptic number.

It is an amenable number.

427626733 is a deficient number, since it is larger than the sum of its proper divisors (1).

427626733 is an equidigital number, since it uses as much as digits as its factorization.

427626733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 40.

The square root of 427626733 is about 20679.1376270869. The cubic root of 427626733 is about 753.3930607399.

Subtracting from 427626733 its reverse (337626724), we obtain a palindrome (90000009).

The spelling of 427626733 in words is "four hundred twenty-seven million, six hundred twenty-six thousand, seven hundred thirty-three".