899470077 has 24 divisors (see below), whose sum is σ = 1325944032. Its totient is φ = 541944480.

The previous prime is 899470073. The next prime is 899470123. The reversal of 899470077 is 770074998.

It is not a de Polignac number, because 899470077 - 2² = 899470073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899470073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55638 + ... + 69960.

It is an arithmetic number, because the mean of its divisors is an integer number (55247668).

Almost surely, 2^899470077 is an apocalyptic number.

It is an amenable number.

899470077 is a deficient number, since it is larger than the sum of its proper divisors (426473955).

899470077 is a wasteful number, since it uses less digits than its factorization.

899470077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14521 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 899470077 is about 29991.1666495320. The cubic root of 899470077 is about 965.2998529458.

The spelling of 899470077 in words is "eight hundred ninety-nine million, four hundred seventy thousand, seventy-seven".