71406403 has 4 divisors (see below), whose sum is σ = 71430120. Its totient is φ = 71382688.

The previous prime is 71406373. The next prime is 71406407. The reversal of 71406403 is 30460417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71406403 - 2⁵ = 71406371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71406407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550 + ... + 13627.

It is an arithmetic number, because the mean of its divisors is an integer number (17857530).

Almost surely, 2^71406403 is an apocalyptic number.

71406403 is a deficient number, since it is larger than the sum of its proper divisors (23717).

71406403 is a wasteful number, since it uses less digits than its factorization.

71406403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23716.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 71406403 is about 8450.2309435896. The cubic root of 71406403 is about 414.8703383579.

The spelling of 71406403 in words is "seventy-one million, four hundred six thousand, four hundred three".