71905002 has 64 divisors (see below), whose sum is σ = 165400704. Its totient is φ = 20643840.

The previous prime is 71904997. The next prime is 71905013. The reversal of 71905002 is 20050917.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279658 + ... + 279914.

It is an arithmetic number, because the mean of its divisors is an integer number (2584386).

Almost surely, 2^71905002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71905002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82700352).

71905002 is an abundant number, since it is smaller than the sum of its proper divisors (93495702).

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

71905002 is a wasteful number, since it uses less digits than its factorization.

71905002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 71905002 is about 8479.6817157249. The cubic root of 71905002 is about 415.8337175974.

Adding to 71905002 its reverse (20050917), we get a palindrome (91955919).

The spelling of 71905002 in words is "seventy-one million, nine hundred five thousand, two".