76441421 has 12 divisors (see below), whose sum is σ = 89084160. Its totient is φ = 65401560.

The previous prime is 76441399. The next prime is 76441429. The reversal of 76441421 is 12414467.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-76441421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76441429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35156 + ... + 37266.

It is an arithmetic number, because the mean of its divisors is an integer number (7423680).

Almost surely, 2^76441421 is an apocalyptic number.

It is an amenable number.

76441421 is a deficient number, since it is larger than the sum of its proper divisors (12642739).

76441421 is a wasteful number, since it uses less digits than its factorization.

76441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864 (or 2857 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 76441421 is about 8743.0784624181. The cubic root of 76441421 is about 424.4008554056.

Adding to 76441421 its reverse (12414467), we get a palindrome (88855888).

The spelling of 76441421 in words is "seventy-six million, four hundred forty-one thousand, four hundred twenty-one".