71470538 has 8 divisors (see below), whose sum is σ = 107241732. Its totient is φ = 35723296.

The previous prime is 71470507. The next prime is 71470657. The reversal of 71470538 is 83507417.

It can be written as a sum of positive squares in 2 ways, for example, as 68277169 + 3193369 = 8263^2 + 1787^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 71470498 and 71470507.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8156 + ... + 14472.

Almost surely, 2^71470538 is an apocalyptic number.

71470538 is a deficient number, since it is larger than the sum of its proper divisors (35771194).

71470538 is a wasteful number, since it uses less digits than its factorization.

71470538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 71470538 is about 8454.0249585626. The cubic root of 71470538 is about 414.9945090482.

The spelling of 71470538 in words is "seventy-one million, four hundred seventy thousand, five hundred thirty-eight".