76836398 has 4 divisors (see below), whose sum is σ = 115254600. Its totient is φ = 38418198.

The previous prime is 76836391. The next prime is 76836401. The reversal of 76836398 is 89363867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89363867 = 137 ⋅652291.

It is a super-2 number, since 2×76836398² = 11807664115228808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76836391) 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, 19209098 + ... + 19209101.

It is an arithmetic number, because the mean of its divisors is an integer number (28813650).

Almost surely, 2^76836398 is an apocalyptic number.

76836398 is a deficient number, since it is larger than the sum of its proper divisors (38418202).

76836398 is a wasteful number, since it uses less digits than its factorization.

76836398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38418201.

The product of its digits is 1306368, while the sum is 50.

The square root of 76836398 is about 8765.6373413460. The cubic root of 76836398 is about 425.1305674957.

The spelling of 76836398 in words is "seventy-six million, eight hundred thirty-six thousand, three hundred ninety-eight".