998963164 has 6 divisors (see below), whose sum is σ = 1748185544. Its totient is φ = 499481580.

The previous prime is 998963153. The next prime is 998963179. The reversal of 998963164 is 461369899.

998963164 = T₂₅₈₀₅ + T₂₅₈₀₆ + T₂₅₈₀₇.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124870392 + ... + 124870399.

Almost surely, 2^998963164 is an apocalyptic number.

998963164 is the 25807-th centered triangular number.

It is an amenable number.

998963164 is a deficient number, since it is larger than the sum of its proper divisors (749222380).

998963164 is a wasteful number, since it uses less digits than its factorization.

998963164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249740795 (or 249740793 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The square root of 998963164 is about 31606.3785334543. The cubic root of 998963164 is about 999.6542684835.

It can be divided in two parts, 9989 and 63164, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 998963164 in words is "nine hundred ninety-eight million, nine hundred sixty-three thousand, one hundred sixty-four".