76346989 has 2 divisors, whose sum is σ = 76346990. Its totient is φ = 76346988.

The previous prime is 76346987. The next prime is 76347023. The reversal of 76346989 is 98964367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75429225 + 917764 = 8685^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 76346989 - 2¹ = 76346987 is a prime.

It is a super-2 number, since 2×76346989² = 11657725458732242, which contains 22 as substring.

Together with 76346987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76346987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38173494 + 38173495.

It is an arithmetic number, because the mean of its divisors is an integer number (38173495).

Almost surely, 2^76346989 is an apocalyptic number.

It is an amenable number.

76346989 is a deficient number, since it is larger than the sum of its proper divisors (1).

76346989 is an equidigital number, since it uses as much as digits as its factorization.

76346989 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 76346989 is about 8737.6764073751. The cubic root of 76346989 is about 424.2260220258.

The spelling of 76346989 in words is "seventy-six million, three hundred forty-six thousand, nine hundred eighty-nine".