849299478 has 16 divisors (see below), whose sum is σ = 1715091456. Its totient is φ = 280351080.

The previous prime is 849299471. The next prime is 849299483. The reversal of 849299478 is 874992948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849299471) 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, 686518 + ... + 687753.

It is an arithmetic number, because the mean of its divisors is an integer number (107193216).

Almost surely, 2^849299478 is an apocalyptic number.

849299478 is an abundant number, since it is smaller than the sum of its proper divisors (865791978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849299478 is a wasteful number, since it uses less digits than its factorization.

849299478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374379.

The product of its digits is 10450944, while the sum is 60.

The square root of 849299478 is about 29142.7431447350. The cubic root of 849299478 is about 947.0079373352.

The spelling of 849299478 in words is "eight hundred forty-nine million, two hundred ninety-nine thousand, four hundred seventy-eight".