71649076 has 24 divisors (see below), whose sum is σ = 132370560. Its totient is φ = 33840000.

The previous prime is 71649041. The next prime is 71649077. The reversal of 71649076 is 67094617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71649077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29301 + ... + 31651.

It is an arithmetic number, because the mean of its divisors is an integer number (5515440).

Almost surely, 2^71649076 is an apocalyptic number.

71649076 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71649076 is a deficient number, since it is larger than the sum of its proper divisors (60721484).

71649076 is a wasteful number, since it uses less digits than its factorization.

71649076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 71649076 is about 8464.5777213042. The cubic root of 71649076 is about 415.3397826926.

The spelling of 71649076 in words is "seventy-one million, six hundred forty-nine thousand, seventy-six".