71691301 has 4 divisors (see below), whose sum is σ = 78208704. Its totient is φ = 65173900.

The previous prime is 71691229. The next prime is 71691307. The reversal of 71691301 is 10319617.

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 71691301 - 2⁹ = 71690789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71691301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71691307) 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, 3258685 + ... + 3258706.

It is an arithmetic number, because the mean of its divisors is an integer number (19552176).

Almost surely, 2^71691301 is an apocalyptic number.

It is an amenable number.

71691301 is a deficient number, since it is larger than the sum of its proper divisors (6517403).

71691301 is a wasteful number, since it uses less digits than its factorization.

71691301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517402.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 71691301 is about 8467.0715716829. The cubic root of 71691301 is about 415.4213574979.

The spelling of 71691301 in words is "seventy-one million, six hundred ninety-one thousand, three hundred one".