423755797 has 2 divisors, whose sum is σ = 423755798. Its totient is φ = 423755796.

The previous prime is 423755767. The next prime is 423755819. The reversal of 423755797 is 797557324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418038916 + 5716881 = 20446^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 423755797 - 2¹⁵ = 423723029 is a prime.

It is a super-2 number, since 2×423755797² = 359137950982210418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423755797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423755767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211877898 + 211877899.

It is an arithmetic number, because the mean of its divisors is an integer number (211877899).

Almost surely, 2^423755797 is an apocalyptic number.

It is an amenable number.

423755797 is a deficient number, since it is larger than the sum of its proper divisors (1).

423755797 is an equidigital number, since it uses as much as digits as its factorization.

423755797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 49.

The square root of 423755797 is about 20585.3296548780. The cubic root of 423755797 is about 751.1128941756.

The spelling of 423755797 in words is "four hundred twenty-three million, seven hundred fifty-five thousand, seven hundred ninety-seven".