76406729 has 12 divisors (see below), whose sum is σ = 89956944. Its totient is φ = 64698984.

The previous prime is 76406717. The next prime is 76406731. The reversal of 76406729 is 92760467.

It is not a de Polignac number, because 76406729 - 2¹² = 76402633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76406749) 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, 5327 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (7496412).

Almost surely, 2^76406729 is an apocalyptic number.

It is an amenable number.

76406729 is a deficient number, since it is larger than the sum of its proper divisors (13550215).

76406729 is a wasteful number, since it uses less digits than its factorization.

76406729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18884 (or 18877 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 76406729 is about 8741.0942678820. The cubic root of 76406729 is about 424.3366426521.

The spelling of 76406729 in words is "seventy-six million, four hundred six thousand, seven hundred twenty-nine".