76661307 has 12 divisors (see below), whose sum is σ = 111978360. Its totient is φ = 50532768.

The previous prime is 76661281. The next prime is 76661339. The reversal of 76661307 is 70316667.

It is not a de Polignac number, because 76661307 - 2¹¹ = 76659259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76661107) 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, 47053 + ... + 48654.

It is an arithmetic number, because the mean of its divisors is an integer number (9331530).

Almost surely, 2^76661307 is an apocalyptic number.

76661307 is a deficient number, since it is larger than the sum of its proper divisors (35317053).

76661307 is a wasteful number, since it uses less digits than its factorization.

76661307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95802 (or 95799 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 76661307 is about 8755.6442938256. The cubic root of 76661307 is about 424.8073996977.

The spelling of 76661307 in words is "seventy-six million, six hundred sixty-one thousand, three hundred seven".