71074649 has 8 divisors (see below), whose sum is σ = 75504000. Its totient is φ = 66714192.

The previous prime is 71074613. The next prime is 71074673. The reversal of 71074649 is 94647017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71074649 - 2¹² = 71070553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71074349) 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, 15089 + ... + 19230.

It is an arithmetic number, because the mean of its divisors is an integer number (9438000).

Almost surely, 2^71074649 is an apocalyptic number.

It is an amenable number.

71074649 is a deficient number, since it is larger than the sum of its proper divisors (4429351).

71074649 is a wasteful number, since it uses less digits than its factorization.

71074649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34447.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 71074649 is about 8430.5782126732. The cubic root of 71074649 is about 414.2268451939.

The spelling of 71074649 in words is "seventy-one million, seventy-four thousand, six hundred forty-nine".