71738678 has 16 divisors (see below), whose sum is σ = 118604304. Its totient is φ = 32271360.

The previous prime is 71738659. The next prime is 71738683. The reversal of 71738678 is 87683717.

It is a congruent number.

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, 14675 + ... + 18942.

It is an arithmetic number, because the mean of its divisors is an integer number (7412769).

Almost surely, 2^71738678 is an apocalyptic number.

71738678 is a deficient number, since it is larger than the sum of its proper divisors (46865626).

71738678 is a wasteful number, since it uses less digits than its factorization.

71738678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33727.

The product of its digits is 395136, while the sum is 47.

The square root of 71738678 is about 8469.8688301532. The cubic root of 71738678 is about 415.5128473695.

It can be divided in two parts, 7173 and 8678, that added together give a palindrome (15851).

The spelling of 71738678 in words is "seventy-one million, seven hundred thirty-eight thousand, six hundred seventy-eight".