76650381 has 40 divisors (see below), whose sum is σ = 119470560. Its totient is φ = 48934368.

The previous prime is 76650377. The next prime is 76650397. The reversal of 76650381 is 18305667.

76650381 is a `hidden beast` number, since 76 + 6 + 503 + 81 = 666.

It is not a de Polignac number, because 76650381 - 2² = 76650377 is a prime.

It is a super-2 number, since 2×76650381² = 11750561814890322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76650341) 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 39 ways as a sum of consecutive naturals, for example, 205311 + ... + 205683.

It is an arithmetic number, because the mean of its divisors is an integer number (2986764).

Almost surely, 2^76650381 is an apocalyptic number.

It is an amenable number.

76650381 is a deficient number, since it is larger than the sum of its proper divisors (42820179).

76650381 is a wasteful number, since it uses less digits than its factorization.

76650381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 76650381 is about 8755.0203312157. The cubic root of 76650381 is about 424.7872171295.

The spelling of 76650381 in words is "seventy-six million, six hundred fifty thousand, three hundred eighty-one".