76561071 has 16 divisors (see below), whose sum is σ = 103200000. Its totient is φ = 50485248.

The previous prime is 76561057. The next prime is 76561087. The reversal of 76561071 is 17016567.

It is not a de Polignac number, because 76561071 - 2⁶ = 76561007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76561031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153180 + ... + 153678.

It is an arithmetic number, because the mean of its divisors is an integer number (6450000).

Almost surely, 2^76561071 is an apocalyptic number.

76561071 is a deficient number, since it is larger than the sum of its proper divisors (26638929).

76561071 is a wasteful number, since it uses less digits than its factorization.

76561071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 76561071 is about 8749.9183424761. The cubic root of 76561071 is about 424.6221712422.

The spelling of 76561071 in words is "seventy-six million, five hundred sixty-one thousand, seventy-one".