998077677 has 8 divisors (see below), whose sum is σ = 1330916160. Its totient is φ = 665312160.

The previous prime is 998077673. The next prime is 998077679. The reversal of 998077677 is 776770899.

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

It is not a de Polignac number, because 998077677 - 2² = 998077673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998077677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998077673) 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, 45352 + ... + 63662.

It is an arithmetic number, because the mean of its divisors is an integer number (166364520).

Almost surely, 2^998077677 is an apocalyptic number.

It is an amenable number.

998077677 is a deficient number, since it is larger than the sum of its proper divisors (332838483).

998077677 is a wasteful number, since it uses less digits than its factorization.

998077677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36483.

The product of its (nonzero) digits is 9335088, while the sum is 60.

The square root of 998077677 is about 31592.3673851771. The cubic root of 998077677 is about 999.3588146359.

The spelling of 998077677 in words is "nine hundred ninety-eight million, seventy-seven thousand, six hundred seventy-seven".