71479057 has 12 divisors (see below), whose sum is σ = 79056000. Its totient is φ = 64569648.

The previous prime is 71479003. The next prime is 71479061. The reversal of 71479057 is 75097417.

It is not a de Polignac number, because 71479057 - 2¹¹ = 71477009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71479097) 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 11 ways as a sum of consecutive naturals, for example, 3444 + ... + 12442.

It is an arithmetic number, because the mean of its divisors is an integer number (6588000).

Almost surely, 2^71479057 is an apocalyptic number.

It is an amenable number.

71479057 is a deficient number, since it is larger than the sum of its proper divisors (7576943).

71479057 is a wasteful number, since it uses less digits than its factorization.

71479057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072 (or 9059 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 71479057 is about 8454.5287863961. The cubic root of 71479057 is about 415.0109969506.

The spelling of 71479057 in words is "seventy-one million, four hundred seventy-nine thousand, fifty-seven".