77000998 has 4 divisors (see below), whose sum is σ = 115501500. Its totient is φ = 38500498.

The previous prime is 77000953. The next prime is 77000999. The reversal of 77000998 is 89900077.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 77000998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77000999) 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, 19250248 + ... + 19250251.

It is an arithmetic number, because the mean of its divisors is an integer number (28875375).

Almost surely, 2^77000998 is an apocalyptic number.

77000998 is a deficient number, since it is larger than the sum of its proper divisors (38500502).

77000998 is a wasteful number, since it uses less digits than its factorization.

77000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38500501.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 77000998 is about 8775.0212535355. The cubic root of 77000998 is about 425.4339245175.

The spelling of 77000998 in words is "seventy-seven million, nine hundred ninety-eight", and thus it is an aban number.