76495421 has 2 divisors, whose sum is σ = 76495422. Its totient is φ = 76495420.

The previous prime is 76495399. The next prime is 76495423. The reversal of 76495421 is 12459467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43375396 + 33120025 = 6586^2 + 5755^2 .

It is an emirp because it is prime and its reverse (12459467) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76495421 is a prime.

It is a Sophie Germain prime.

Together with 76495423, it forms a pair of twin primes.

It is a Chen 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 (76495423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38247710 + 38247711.

It is an arithmetic number, because the mean of its divisors is an integer number (38247711).

Almost surely, 2^76495421 is an apocalyptic number.

It is an amenable number.

76495421 is a deficient number, since it is larger than the sum of its proper divisors (1).

76495421 is an equidigital number, since it uses as much as digits as its factorization.

76495421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 76495421 is about 8746.1660743437. The cubic root of 76495421 is about 424.5007674319.

The spelling of 76495421 in words is "seventy-six million, four hundred ninety-five thousand, four hundred twenty-one".