71764738 has 16 divisors (see below), whose sum is σ = 112596480. Its totient is φ = 34240096.

The previous prime is 71764711. The next prime is 71764747. The reversal of 71764738 is 83746717.

It is a junction number, because it is equal to n+sod(n) for n = 71764694 and 71764703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20406 + ... + 23662.

It is an arithmetic number, because the mean of its divisors is an integer number (7037280).

Almost surely, 2^71764738 is an apocalyptic number.

71764738 is a deficient number, since it is larger than the sum of its proper divisors (40831742).

71764738 is a wasteful number, since it uses less digits than its factorization.

71764738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761.

The product of its digits is 197568, while the sum is 43.

The square root of 71764738 is about 8471.4070850125. The cubic root of 71764738 is about 415.5631547453.

The spelling of 71764738 in words is "seventy-one million, seven hundred sixty-four thousand, seven hundred thirty-eight".