71400007 has 6 divisors (see below), whose sum is σ = 83057208. Its totient is φ = 61199964.

The previous prime is 71399969. The next prime is 71400011. The reversal of 71400007 is 70000417.

It is not a de Polignac number, because 71400007 - 2¹¹ = 71397959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71400107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728523 + ... + 728620.

It is an arithmetic number, because the mean of its divisors is an integer number (13842868).

Almost surely, 2^71400007 is an apocalyptic number.

71400007 is a deficient number, since it is larger than the sum of its proper divisors (11657201).

71400007 is a wasteful number, since it uses less digits than its factorization.

71400007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457157 (or 1457150 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 71400007 is about 8449.8524839195. The cubic root of 71400007 is about 414.8579510938.

The spelling of 71400007 in words is "seventy-one million, four hundred thousand, seven".