71379147 has 8 divisors (see below), whose sum is σ = 108768256. Its totient is φ = 40788072.

The previous prime is 71379137. The next prime is 71379151. The reversal of 71379147 is 74197317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71379147 - 2⁶ = 71379083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71379127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699483 + ... + 1699524.

It is an arithmetic number, because the mean of its divisors is an integer number (13596032).

Almost surely, 2^71379147 is an apocalyptic number.

71379147 is a deficient number, since it is larger than the sum of its proper divisors (37389109).

71379147 is a wasteful number, since it uses less digits than its factorization.

71379147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399017.

The product of its digits is 37044, while the sum is 39.

The square root of 71379147 is about 8448.6180526758. The cubic root of 71379147 is about 414.8175459635.

The spelling of 71379147 in words is "seventy-one million, three hundred seventy-nine thousand, one hundred forty-seven".