902241217 has 4 divisors (see below), whose sum is σ = 941469120. Its totient is φ = 863013316.

The previous prime is 902241211. The next prime is 902241253. The reversal of 902241217 is 712142209.

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 902241217 - 2³ = 902241209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (902241211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19613917 + ... + 19613962.

It is an arithmetic number, because the mean of its divisors is an integer number (235367280).

Almost surely, 2^902241217 is an apocalyptic number.

It is an amenable number.

902241217 is a deficient number, since it is larger than the sum of its proper divisors (39227903).

902241217 is a wasteful number, since it uses less digits than its factorization.

902241217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39227902.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 902241217 is about 30037.3303906988. The cubic root of 902241217 is about 966.2901540560.

The spelling of 902241217 in words is "nine hundred two million, two hundred forty-one thousand, two hundred seventeen".