71709450 has 24 divisors (see below), whose sum is σ = 177839808. Its totient is φ = 19122480.

The previous prime is 71709437. The next prime is 71709457. The reversal of 71709450 is 5490717.

It is not an unprimeable number, because it can be changed into a prime (71709457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238882 + ... + 239181.

It is an arithmetic number, because the mean of its divisors is an integer number (7409992).

Almost surely, 2^71709450 is an apocalyptic number.

71709450 is an abundant number, since it is smaller than the sum of its proper divisors (106130358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71709450 is a wasteful number, since it uses less digits than its factorization.

71709450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478078 (or 478073 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 71709450 is about 8468.1432439467. The cubic root of 71709450 is about 415.4564098496.

The spelling of 71709450 in words is "seventy-one million, seven hundred nine thousand, four hundred fifty".