76898369 has 4 divisors (see below), whose sum is σ = 78159060. Its totient is φ = 75637680.

The previous prime is 76898351. The next prime is 76898387. The reversal of 76898369 is 96389867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96389867 = 7 ⋅13769981.

It is an interprime number because it is at equal distance from previous prime (76898351) and next prime (76898387).

It can be written as a sum of positive squares in 2 ways, for example, as 30658369 + 46240000 = 5537^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 76898369 - 2⁸ = 76898113 is a prime.

It is a super-2 number, since 2×76898369² = 11826718309720322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76898069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630254 + ... + 630375.

It is an arithmetic number, because the mean of its divisors is an integer number (19539765).

Almost surely, 2^76898369 is an apocalyptic number.

It is an amenable number.

76898369 is a deficient number, since it is larger than the sum of its proper divisors (1260691).

76898369 is a wasteful number, since it uses less digits than its factorization.

76898369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260690.

The product of its digits is 3919104, while the sum is 56.

The square root of 76898369 is about 8769.1715116082. The cubic root of 76898369 is about 425.2448305592.

The spelling of 76898369 in words is "seventy-six million, eight hundred ninety-eight thousand, three hundred sixty-nine".