245898817 has 8 divisors (see below), whose sum is σ = 260274560. Its totient is φ = 231666480.

The previous prime is 245898803. The next prime is 245898823. The reversal of 245898817 is 718898542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245898817 - 2¹¹ = 245896769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245898847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32313 + ... + 39190.

It is an arithmetic number, because the mean of its divisors is an integer number (32534320).

Almost surely, 2^245898817 is an apocalyptic number.

It is an amenable number.

245898817 is a deficient number, since it is larger than the sum of its proper divisors (14375743).

245898817 is a wasteful number, since it uses less digits than its factorization.

245898817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71703.

The product of its digits is 1290240, while the sum is 52.

The square root of 245898817 is about 15681.1612133796. The cubic root of 245898817 is about 626.4967366259.

The spelling of 245898817 in words is "two hundred forty-five million, eight hundred ninety-eight thousand, eight hundred seventeen".