4217905997 has 4 divisors (see below), whose sum is σ = 4226292000. Its totient is φ = 4209519996.

The previous prime is 4217905981. The next prime is 4217906029. The reversal of 4217905997 is 7995097124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4217905997 - 2⁴ = 4217905981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4217905927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4192247 + ... + 4193252.

It is an arithmetic number, because the mean of its divisors is an integer number (1056573000).

Almost surely, 2^4217905997 is an apocalyptic number.

It is an amenable number.

4217905997 is a deficient number, since it is larger than the sum of its proper divisors (8386003).

4217905997 is an equidigital number, since it uses as much as digits as its factorization.

4217905997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8386002.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The square root of 4217905997 is about 64945.4078207228. The cubic root of 4217905997 is about 1615.7182563023.

The spelling of 4217905997 in words is "four billion, two hundred seventeen million, nine hundred five thousand, nine hundred ninety-seven".