71670470 has 32 divisors (see below), whose sum is σ = 143791200. Its totient is φ = 25560576.

The previous prime is 71670449. The next prime is 71670479. The reversal of 71670470 is 7407617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71670479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7865 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (4493475).

Almost surely, 2^71670470 is an apocalyptic number.

71670470 is an abundant number, since it is smaller than the sum of its proper divisors (72120730).

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

71670470 is a wasteful number, since it uses less digits than its factorization.

71670470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22232.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 71670470 is about 8465.8413639756. The cubic root of 71670470 is about 415.3811179316.

The spelling of 71670470 in words is "seventy-one million, six hundred seventy thousand, four hundred seventy".