71008401 has 4 divisors (see below), whose sum is σ = 94677872. Its totient is φ = 47338932.

The previous prime is 71008387. The next prime is 71008403. The reversal of 71008401 is 10480017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 71008401 - 2²³ = 62619793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71008403) 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, 11834731 + ... + 11834736.

It is an arithmetic number, because the mean of its divisors is an integer number (23669468).

Almost surely, 2^71008401 is an apocalyptic number.

It is an amenable number.

71008401 is a deficient number, since it is larger than the sum of its proper divisors (23669471).

71008401 is a wasteful number, since it uses less digits than its factorization.

71008401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23669470.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 71008401 is about 8426.6482660664. The cubic root of 71008401 is about 414.0981062277.

Adding to 71008401 its reverse (10480017), we get a palindrome (81488418).

The spelling of 71008401 in words is "seventy-one million, eight thousand, four hundred one".