71282407 has 6 divisors (see below), whose sum is σ = 82920408. Its totient is φ = 61099164.

The previous prime is 71282399. The next prime is 71282429. The reversal of 71282407 is 70428217.

It is not a de Polignac number, because 71282407 - 2³ = 71282399 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 (71288407) 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, 727323 + ... + 727420.

It is an arithmetic number, because the mean of its divisors is an integer number (13820068).

Almost surely, 2^71282407 is an apocalyptic number.

71282407 is a deficient number, since it is larger than the sum of its proper divisors (11638001).

71282407 is a wasteful number, since it uses less digits than its factorization.

71282407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454757 (or 1454750 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 71282407 is about 8442.8909148466. The cubic root of 71282407 is about 414.6300608045.

The spelling of 71282407 in words is "seventy-one million, two hundred eighty-two thousand, four hundred seven".