71634730 has 32 divisors (see below), whose sum is σ = 131155200. Its totient is φ = 28167360.

The previous prime is 71634671. The next prime is 71634733. The reversal of 71634730 is 3743617.

It is a junction number, because it is equal to n+sod(n) for n = 71634692 and 71634701.

It is not an unprimeable number, because it can be changed into a prime (71634733) 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 15 ways as a sum of consecutive naturals, for example, 195007 + ... + 195373.

It is an arithmetic number, because the mean of its divisors is an integer number (4098600).

Almost surely, 2^71634730 is an apocalyptic number.

71634730 is a deficient number, since it is larger than the sum of its proper divisors (59520470).

71634730 is a wasteful number, since it uses less digits than its factorization.

71634730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 71634730 is about 8463.7302650782. The cubic root of 71634730 is about 415.3120602497.

The spelling of 71634730 in words is "seventy-one million, six hundred thirty-four thousand, seven hundred thirty".