76469389 has 2 divisors, whose sum is σ = 76469390. Its totient is φ = 76469388.

The previous prime is 76469359. The next prime is 76469413. The reversal of 76469389 is 98396467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46854025 + 29615364 = 6845^2 + 5442^2 .

It is a cyclic number.

It is not a de Polignac number, because 76469389 - 2¹⁹ = 75945101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76469339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38234694 + 38234695.

It is an arithmetic number, because the mean of its divisors is an integer number (38234695).

Almost surely, 2^76469389 is an apocalyptic number.

It is an amenable number.

76469389 is a deficient number, since it is larger than the sum of its proper divisors (1).

76469389 is an equidigital number, since it uses as much as digits as its factorization.

76469389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 76469389 is about 8744.6777527820. The cubic root of 76469389 is about 424.4526083063.

The spelling of 76469389 in words is "seventy-six million, four hundred sixty-nine thousand, three hundred eighty-nine".