71403913 has 8 divisors (see below), whose sum is σ = 82638080. Its totient is φ = 60428160.

The previous prime is 71403911. The next prime is 71403923. The reversal of 71403913 is 31930417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71403913 - 2¹ = 71403911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71403911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64008 + ... + 65113.

It is an arithmetic number, because the mean of its divisors is an integer number (10329760).

Almost surely, 2^71403913 is an apocalyptic number.

It is an amenable number.

71403913 is a deficient number, since it is larger than the sum of its proper divisors (11234167).

71403913 is a wasteful number, since it uses less digits than its factorization.

71403913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129207.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71403913 is about 8450.0836090538. The cubic root of 71403913 is about 414.8655160119.

The spelling of 71403913 in words is "seventy-one million, four hundred three thousand, nine hundred thirteen".