899154869 has 4 divisors (see below), whose sum is σ = 899319744. Its totient is φ = 898989996.

The previous prime is 899154829. The next prime is 899154901. The reversal of 899154869 is 968451998.

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 899154869 - 2¹² = 899150773 is a prime.

It is a super-2 number, since 2×899154869² = 1616958956892814322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899154829) 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, 73967 + ... + 85260.

It is an arithmetic number, because the mean of its divisors is an integer number (224829936).

Almost surely, 2^899154869 is an apocalyptic number.

It is an amenable number.

899154869 is a deficient number, since it is larger than the sum of its proper divisors (164875).

899154869 is a wasteful number, since it uses less digits than its factorization.

899154869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164874.

The product of its digits is 5598720, while the sum is 59.

The square root of 899154869 is about 29985.9111750835. The cubic root of 899154869 is about 965.1870806987.

The spelling of 899154869 in words is "eight hundred ninety-nine million, one hundred fifty-four thousand, eight hundred sixty-nine".