71069953 has 4 divisors (see below), whose sum is σ = 72043588. Its totient is φ = 70096320.

The previous prime is 71069951. The next prime is 71069993. The reversal of 71069953 is 35996017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31719424 + 39350529 = 5632^2 + 6273^2 .

It is a cyclic number.

It is not a de Polignac number, because 71069953 - 2¹ = 71069951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71069951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486708 + ... + 486853.

It is an arithmetic number, because the mean of its divisors is an integer number (18010897).

Almost surely, 2^71069953 is an apocalyptic number.

71069953 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

71069953 is a deficient number, since it is larger than the sum of its proper divisors (973635).

71069953 is an equidigital number, since it uses as much as digits as its factorization.

71069953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973634.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 71069953 is about 8430.2996981128. The cubic root of 71069953 is about 414.2177221468.

The spelling of 71069953 in words is "seventy-one million, sixty-nine thousand, nine hundred fifty-three".