76374821 has 2 divisors, whose sum is σ = 76374822. Its totient is φ = 76374820.

The previous prime is 76374799. The next prime is 76374827. The reversal of 76374821 is 12847367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 37761025 = 6214^2 + 6145^2 .

It is a cyclic number.

It is not a de Polignac number, because 76374821 - 2⁶ = 76374757 is a prime.

It is a super-2 number, since 2×76374821² = 11666226565564082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76374827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38187410 + 38187411.

It is an arithmetic number, because the mean of its divisors is an integer number (38187411).

Almost surely, 2^76374821 is an apocalyptic number.

It is an amenable number.

76374821 is a deficient number, since it is larger than the sum of its proper divisors (1).

76374821 is an equidigital number, since it uses as much as digits as its factorization.

76374821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 76374821 is about 8739.2689053490. The cubic root of 76374821 is about 424.2775657489.

The spelling of 76374821 in words is "seventy-six million, three hundred seventy-four thousand, eight hundred twenty-one".