71428035 has 32 divisors (see below), whose sum is σ = 133286400. Its totient is φ = 32650464.

The previous prime is 71428013. The next prime is 71428037. The reversal of 71428035 is 53082417.

It is not a de Polignac number, because 71428035 - 2⁵ = 71428003 is a prime.

It is a super-2 number, since 2×71428035² = 10203928367922450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71427993 and 71428011.

It is not an unprimeable number, because it can be changed into a prime (71428037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797 + ... + 12086.

It is an arithmetic number, because the mean of its divisors is an integer number (4165200).

Almost surely, 2^71428035 is an apocalyptic number.

71428035 is a deficient number, since it is larger than the sum of its proper divisors (61858365).

71428035 is a wasteful number, since it uses less digits than its factorization.

71428035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912 (or 13898 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 71428035 is about 8451.5108116833. The cubic root of 71428035 is about 414.9122280143.

The spelling of 71428035 in words is "seventy-one million, four hundred twenty-eight thousand, thirty-five".