71107470 has 80 divisors (see below), whose sum is σ = 218531808. Its totient is φ = 16251840.

The previous prime is 71107469. The next prime is 71107483. The reversal of 71107470 is 7470117.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 601 + ... + 11940.

Almost surely, 2^71107470 is an apocalyptic number.

71107470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71107470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109265904).

71107470 is an abundant number, since it is smaller than the sum of its proper divisors (147424338).

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

71107470 is a wasteful number, since it uses less digits than its factorization.

71107470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12567 (or 12558 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 71107470 is about 8432.5245330209. The cubic root of 71107470 is about 414.2905962281.

Adding to 71107470 its reverse (7470117), we get a palindrome (78577587).

The spelling of 71107470 in words is "seventy-one million, one hundred seven thousand, four hundred seventy".