76416121 has 4 divisors (see below), whose sum is σ = 76662144. Its totient is φ = 76170100.

The previous prime is 76416107. The next prime is 76416127. The reversal of 76416121 is 12161467.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76416121 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 76416121.

It is not an unprimeable number, because it can be changed into a prime (76416127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122545 + ... + 123166.

It is an arithmetic number, because the mean of its divisors is an integer number (19165536).

Almost surely, 2^76416121 is an apocalyptic number.

It is an amenable number.

76416121 is a deficient number, since it is larger than the sum of its proper divisors (246023).

76416121 is a wasteful number, since it uses less digits than its factorization.

76416121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246022.

The product of its digits is 2016, while the sum is 28.

The square root of 76416121 is about 8741.6314838822. The cubic root of 76416121 is about 424.3540285836.

Adding to 76416121 its reverse (12161467), we get a palindrome (88577588).

The spelling of 76416121 in words is "seventy-six million, four hundred sixteen thousand, one hundred twenty-one".