76446889 has 2 divisors, whose sum is σ = 76446890. Its totient is φ = 76446888.

The previous prime is 76446883. The next prime is 76446947. The reversal of 76446889 is 98864467.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74736025 + 1710864 = 8645^2 + 1308^2 .

It is a cyclic number.

It is not a de Polignac number, because 76446889 - 2¹³ = 76438697 is a prime.

It is not a weakly prime, because it can be changed into another prime (76446883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38223444 + 38223445.

It is an arithmetic number, because the mean of its divisors is an integer number (38223445).

Almost surely, 2^76446889 is an apocalyptic number.

It is an amenable number.

76446889 is a deficient number, since it is larger than the sum of its proper divisors (1).

76446889 is an equidigital number, since it uses as much as digits as its factorization.

76446889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The square root of 76446889 is about 8743.3911613287. The cubic root of 76446889 is about 424.4109745640.

The spelling of 76446889 in words is "seventy-six million, four hundred forty-six thousand, eight hundred eighty-nine".