76381069 has 2 divisors, whose sum is σ = 76381070. Its totient is φ = 76381068.

The previous prime is 76381033. The next prime is 76381087. The reversal of 76381069 is 96018367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 11819844 = 8035^2 + 3438^2 .

It is a cyclic number.

It is not a de Polignac number, because 76381069 - 2¹⁷ = 76249997 is a prime.

It is a super-2 number, since 2×76381069² = 11668135403165522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76381009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38190534 + 38190535.

It is an arithmetic number, because the mean of its divisors is an integer number (38190535).

Almost surely, 2^76381069 is an apocalyptic number.

It is an amenable number.

76381069 is a deficient number, since it is larger than the sum of its proper divisors (1).

76381069 is an equidigital number, since it uses as much as digits as its factorization.

76381069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 76381069 is about 8739.6263650113. The cubic root of 76381069 is about 424.2891350677.

The spelling of 76381069 in words is "seventy-six million, three hundred eighty-one thousand, sixty-nine".