76053821 has 2 divisors, whose sum is σ = 76053822. Its totient is φ = 76053820.

The previous prime is 76053787. The next prime is 76053841. The reversal of 76053821 is 12835067.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57684025 + 18369796 = 7595^2 + 4286^2 .

It is a cyclic number.

It is not a de Polignac number, because 76053821 - 2²² = 71859517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76053841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38026910 + 38026911.

It is an arithmetic number, because the mean of its divisors is an integer number (38026911).

Almost surely, 2^76053821 is an apocalyptic number.

It is an amenable number.

76053821 is a deficient number, since it is larger than the sum of its proper divisors (1).

76053821 is an equidigital number, since it uses as much as digits as its factorization.

76053821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 76053821 is about 8720.8841868242. The cubic root of 76053821 is about 423.6823244197.

Adding to 76053821 its reverse (12835067), we get a palindrome (88888888).

The spelling of 76053821 in words is "seventy-six million, fifty-three thousand, eight hundred twenty-one".