76739013 has 24 divisors (see below), whose sum is σ = 120109080. Its totient is φ = 47211840.

The previous prime is 76738993. The next prime is 76739021. The reversal of 76739013 is 31093767.

It can be written as a sum of positive squares in 4 ways, for example, as 18948609 + 57790404 = 4353^2 + 7602^2 .

It is not a de Polignac number, because 76739013 - 2¹³ = 76730821 is a prime.

It is a super-2 number, since 2×76739013² = 11777752232428338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76739213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17833 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (5004545).

Almost surely, 2^76739013 is an apocalyptic number.

It is an amenable number.

76739013 is a deficient number, since it is larger than the sum of its proper divisors (43370067).

76739013 is a wasteful number, since it uses less digits than its factorization.

76739013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 76739013 is about 8760.0806503137. The cubic root of 76739013 is about 424.9508833666.

The spelling of 76739013 in words is "seventy-six million, seven hundred thirty-nine thousand, thirteen".