76411421 has 2 divisors, whose sum is σ = 76411422. Its totient is φ = 76411420.

The previous prime is 76411409. The next prime is 76411427. The reversal of 76411421 is 12411467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 3496900 = 8539^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 76411421 - 2¹⁴ = 76395037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76411427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38205710 + 38205711.

It is an arithmetic number, because the mean of its divisors is an integer number (38205711).

Almost surely, 2^76411421 is an apocalyptic number.

It is an amenable number.

76411421 is a deficient number, since it is larger than the sum of its proper divisors (1).

76411421 is an equidigital number, since it uses as much as digits as its factorization.

76411421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 76411421 is about 8741.3626512118. The cubic root of 76411421 is about 424.3453283914.

Adding to 76411421 its reverse (12411467), we get a palindrome (88822888).

The spelling of 76411421 in words is "seventy-six million, four hundred eleven thousand, four hundred twenty-one".