76419421 has 4 divisors (see below), whose sum is σ = 82297852. Its totient is φ = 70540992.

The previous prime is 76419419. The next prime is 76419457. The reversal of 76419421 is 12491467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12491467 = 499 ⋅25033.

It can be written as a sum of positive squares in 2 ways, for example, as 36905625 + 39513796 = 6075^2 + 6286^2 .

It is a cyclic number.

It is not a de Polignac number, because 76419421 - 2¹ = 76419419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76419461) 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, 2939196 + ... + 2939221.

It is an arithmetic number, because the mean of its divisors is an integer number (20574463).

Almost surely, 2^76419421 is an apocalyptic number.

It is an amenable number.

76419421 is a deficient number, since it is larger than the sum of its proper divisors (5878431).

76419421 is a wasteful number, since it uses less digits than its factorization.

76419421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878430.

The product of its digits is 12096, while the sum is 34.

The square root of 76419421 is about 8741.8202337957. The cubic root of 76419421 is about 424.3601370160.

The spelling of 76419421 in words is "seventy-six million, four hundred nineteen thousand, four hundred twenty-one".