71488070 has 32 divisors (see below), whose sum is σ = 139125600. Its totient is φ = 26355456.

The previous prime is 71488057. The next prime is 71488073. The reversal of 71488070 is 7088417.

It is a super-2 number, since 2×71488070² = 10221088304649800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71488070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71488073) 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, 1946 + ... + 12114.

It is an arithmetic number, because the mean of its divisors is an integer number (4347675).

Almost surely, 2^71488070 is an apocalyptic number.

71488070 is a deficient number, since it is larger than the sum of its proper divisors (67637530).

71488070 is a wasteful number, since it uses less digits than its factorization.

71488070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 71488070 is about 8455.0617975270. The cubic root of 71488070 is about 415.0284395278.

The spelling of 71488070 in words is "seventy-one million, four hundred eighty-eight thousand, seventy".