76820738 has 8 divisors (see below), whose sum is σ = 115307388. Its totient is φ = 38384944.

The previous prime is 76820729. The next prime is 76820749. The reversal of 76820738 is 83702867.

It can be written as a sum of positive squares in 2 ways, for example, as 76440049 + 380689 = 8743^2 + 617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 76820695 and 76820704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8681 + ... + 15132.

Almost surely, 2^76820738 is an apocalyptic number.

76820738 is a deficient number, since it is larger than the sum of its proper divisors (38486650).

76820738 is a wasteful number, since it uses less digits than its factorization.

76820738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25428.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 76820738 is about 8764.7440350532. The cubic root of 76820738 is about 425.1016836282.

The spelling of 76820738 in words is "seventy-six million, eight hundred twenty thousand, seven hundred thirty-eight".