76443849 has 12 divisors (see below), whose sum is σ = 116914356. Its totient is φ = 47964672.

The previous prime is 76443779. The next prime is 76443853. The reversal of 76443849 is 94834467.

It can be written as a sum of positive squares in 2 ways, for example, as 49070025 + 27373824 = 7005^2 + 5232^2 .

It is not a de Polignac number, because 76443849 - 2¹⁵ = 76411081 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (76443149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249664 + ... + 249969.

It is an arithmetic number, because the mean of its divisors is an integer number (9742863).

Almost surely, 2^76443849 is an apocalyptic number.

It is an amenable number.

76443849 is a deficient number, since it is larger than the sum of its proper divisors (40470507).

76443849 is a wasteful number, since it uses less digits than its factorization.

76443849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499656 (or 499653 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 76443849 is about 8743.2173140098. The cubic root of 76443849 is about 424.4053487564.

The spelling of 76443849 in words is "seventy-six million, four hundred forty-three thousand, eight hundred forty-nine".