71057026 has 8 divisors (see below), whose sum is σ = 106624764. Its totient is φ = 35515440.

The previous prime is 71057011. The next prime is 71057033. The reversal of 71057026 is 62075017.

It can be written as a sum of positive squares in 2 ways, for example, as 49014001 + 22043025 = 7001^2 + 4695^2 .

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 = 71056985 and 71057003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096 + ... + 12316.

Almost surely, 2^71057026 is an apocalyptic number.

71057026 is a deficient number, since it is larger than the sum of its proper divisors (35567738).

71057026 is a wasteful number, since it uses less digits than its factorization.

71057026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13076.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 71057026 is about 8429.5329645242. The cubic root of 71057026 is about 414.1926064359.

Subtracting from 71057026 its reverse (62075017), we obtain a square (8982009 = 2997²).

The spelling of 71057026 in words is "seventy-one million, fifty-seven thousand, twenty-six".