73561071 has 8 divisors (see below), whose sum is σ = 98309680. Its totient is φ = 48926592.

The previous prime is 73561013. The next prime is 73561073. The reversal of 73561071 is 17016537.

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

It is not a de Polignac number, because 73561071 - 2⁷ = 73560943 is a prime.

It is a super-2 number, since 2×73561071² = 10822462333334082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73561073) 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, 27016 + ... + 29613.

It is an arithmetic number, because the mean of its divisors is an integer number (12288710).

Almost surely, 2^73561071 is an apocalyptic number.

73561071 is a deficient number, since it is larger than the sum of its proper divisors (24748609).

73561071 is a wasteful number, since it uses less digits than its factorization.

73561071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57065.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 73561071 is about 8576.7750932387. The cubic root of 73561071 is about 419.0019214506.

The spelling of 73561071 in words is "seventy-three million, five hundred sixty-one thousand, seventy-one".