71896870 has 16 divisors (see below), whose sum is σ = 130870080. Its totient is φ = 28435264.

The previous prime is 71896837. The next prime is 71896871. The reversal of 71896870 is 7869817.

It is a self number, because there is not a number n which added to its sum of digits gives 71896870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71896871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39502 + ... + 41281.

It is an arithmetic number, because the mean of its divisors is an integer number (8179380).

Almost surely, 2^71896870 is an apocalyptic number.

71896870 is a deficient number, since it is larger than the sum of its proper divisors (58973210).

71896870 is a wasteful number, since it uses less digits than its factorization.

71896870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80879.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 71896870 is about 8479.2022030377. The cubic root of 71896870 is about 415.8180409537.

The spelling of 71896870 in words is "seventy-one million, eight hundred ninety-six thousand, eight hundred seventy".