76371121 has 4 divisors (see below), whose sum is σ = 76393332. Its totient is φ = 76348912.

The previous prime is 76371103. The next prime is 76371137. The reversal of 76371121 is 12117367.

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 49900096 + 26471025 = 7064^2 + 5145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76371121 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 76371121.

It is not an unprimeable number, because it can be changed into a prime (76371161) 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, 4726 + ... + 13231.

It is an arithmetic number, because the mean of its divisors is an integer number (19098333).

Almost surely, 2^76371121 is an apocalyptic number.

It is an amenable number.

76371121 is a deficient number, since it is larger than the sum of its proper divisors (22211).

76371121 is a wasteful number, since it uses less digits than its factorization.

76371121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22210.

The product of its digits is 1764, while the sum is 28.

The square root of 76371121 is about 8739.0572145970. The cubic root of 76371121 is about 424.2707142224.

Adding to 76371121 its reverse (12117367), we get a palindrome (88488488).

The spelling of 76371121 in words is "seventy-six million, three hundred seventy-one thousand, one hundred twenty-one".