424285997 has 2 divisors, whose sum is σ = 424285998. Its totient is φ = 424285996.

The previous prime is 424285969. The next prime is 424286003. The reversal of 424285997 is 799582424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271788196 + 152497801 = 16486^2 + 12349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424285997 is a prime.

It is a super-4 number, since 4×424285997⁴ (a number of 36 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424285297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212142998 + 212142999.

It is an arithmetic number, because the mean of its divisors is an integer number (212142999).

Almost surely, 2^424285997 is an apocalyptic number.

It is an amenable number.

424285997 is a deficient number, since it is larger than the sum of its proper divisors (1).

424285997 is an equidigital number, since it uses as much as digits as its factorization.

424285997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 424285997 is about 20598.2037323646. The cubic root of 424285997 is about 751.4260258449.

The spelling of 424285997 in words is "four hundred twenty-four million, two hundred eighty-five thousand, nine hundred ninety-seven".