71903914 has 16 divisors (see below), whose sum is σ = 116987976. Its totient is φ = 33011200.

The previous prime is 71903899. The next prime is 71903917. The reversal of 71903914 is 41930917.

It can be written as a sum of positive squares in 4 ways, for example, as 28804689 + 43099225 = 5367^2 + 6565^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 71903914.

It is not an unprimeable number, because it can be changed into a prime (71903917) 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, 24397 + ... + 27184.

Almost surely, 2^71903914 is an apocalyptic number.

71903914 is a deficient number, since it is larger than the sum of its proper divisors (45084062).

71903914 is a wasteful number, since it uses less digits than its factorization.

71903914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51641.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 71903914 is about 8479.6175621310. The cubic root of 71903914 is about 415.8316202497.

The spelling of 71903914 in words is "seventy-one million, nine hundred three thousand, nine hundred fourteen".