71241677 has 4 divisors (see below), whose sum is σ = 76721820. Its totient is φ = 65761536.

The previous prime is 71241631. The next prime is 71241683. The reversal of 71241677 is 77614217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32478601 + 38763076 = 5699^2 + 6226^2 .

It is a cyclic number.

It is not a de Polignac number, because 71241677 - 2⁸ = 71241421 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 (71241077) 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, 2740052 + ... + 2740077.

It is an arithmetic number, because the mean of its divisors is an integer number (19180455).

Almost surely, 2^71241677 is an apocalyptic number.

It is an amenable number.

71241677 is a deficient number, since it is larger than the sum of its proper divisors (5480143).

71241677 is a wasteful number, since it uses less digits than its factorization.

71241677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480142.

The product of its digits is 16464, while the sum is 35.

The square root of 71241677 is about 8440.4784816976. The cubic root of 71241677 is about 414.5510740407.

The spelling of 71241677 in words is "seventy-one million, two hundred forty-one thousand, six hundred seventy-seven".