834208749 has 24 divisors (see below), whose sum is σ = 1333036224. Its totient is φ = 498456000.

The previous prime is 834208747. The next prime is 834208777. The reversal of 834208749 is 947802438.

It is not a de Polignac number, because 834208749 - 2¹ = 834208747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834208747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52312 + ... + 66369.

It is an arithmetic number, because the mean of its divisors is an integer number (55543176).

Almost surely, 2^834208749 is an apocalyptic number.

It is an amenable number.

834208749 is a deficient number, since it is larger than the sum of its proper divisors (498827475).

834208749 is a wasteful number, since it uses less digits than its factorization.

834208749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118769 (or 118766 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 834208749 is about 28882.6721236107. The cubic root of 834208749 is about 941.3654326349.

The spelling of 834208749 in words is "eight hundred thirty-four million, two hundred eight thousand, seven hundred forty-nine".