71407629 has 8 divisors (see below), whose sum is σ = 105789120. Its totient is φ = 47605068.

The previous prime is 71407619. The next prime is 71407717. The reversal of 71407629 is 92670417.

It is a happy number.

It is not a de Polignac number, because 71407629 - 2⁵ = 71407597 is a prime.

It is a super-3 number, since 3×71407629³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71407593 and 71407602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71407619) 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, 1322337 + ... + 1322390.

It is an arithmetic number, because the mean of its divisors is an integer number (13223640).

Almost surely, 2^71407629 is an apocalyptic number.

It is an amenable number.

71407629 is a deficient number, since it is larger than the sum of its proper divisors (34381491).

71407629 is a wasteful number, since it uses less digits than its factorization.

71407629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644736 (or 2644730 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 71407629 is about 8450.3034856743. The cubic root of 71407629 is about 414.8727126927.

The spelling of 71407629 in words is "seventy-one million, four hundred seven thousand, six hundred twenty-nine".