899247797 has 8 divisors (see below), whose sum is σ = 1035557952. Its totient is φ = 764899200.

The previous prime is 899247779. The next prime is 899247823. The reversal of 899247797 is 797742998.

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 899247797 - 2¹² = 899243701 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 (899247737) 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, 489404 + ... + 491237.

It is an arithmetic number, because the mean of its divisors is an integer number (129444744).

Almost surely, 2^899247797 is an apocalyptic number.

It is an amenable number.

899247797 is a deficient number, since it is larger than the sum of its proper divisors (136310155).

899247797 is a wasteful number, since it uses less digits than its factorization.

899247797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980779.

The product of its digits is 16003008, while the sum is 62.

The square root of 899247797 is about 29987.4606627504. The cubic root of 899247797 is about 965.2203303713.

The spelling of 899247797 in words is "eight hundred ninety-nine million, two hundred forty-seven thousand, seven hundred ninety-seven".