77382899 has 8 divisors (see below), whose sum is σ = 84481392. Its totient is φ = 70295040.

The previous prime is 77382889. The next prime is 77382901. The reversal of 77382899 is 99828377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77382899 - 2⁴ = 77382883 is a prime.

It is a super-2 number, since 2×77382899² = 11976226115288402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77382899.

It is not an unprimeable number, because it can be changed into a prime (77382869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27167 + ... + 29879.

It is an arithmetic number, because the mean of its divisors is an integer number (10560174).

Almost surely, 2^77382899 is an apocalyptic number.

77382899 is a deficient number, since it is larger than the sum of its proper divisors (7098493).

77382899 is a wasteful number, since it uses less digits than its factorization.

77382899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5317.

The product of its digits is 1524096, while the sum is 53.

The square root of 77382899 is about 8796.7550267130. The cubic root of 77382899 is about 426.1361049085.

The spelling of 77382899 in words is "seventy-seven million, three hundred eighty-two thousand, eight hundred ninety-nine".