16463998 has 8 divisors (see below), whose sum is σ = 25769808. Its totient is φ = 7874064.

The previous prime is 16463989. The next prime is 16463999. The reversal of 16463998 is 89936461.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 357913 = 16463998 / (1 + 6 + 4 + 6 + 3 + 9 + 9 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16463999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178911 + ... + 179002.

It is an arithmetic number, because the mean of its divisors is an integer number (3221226).

Almost surely, 2^16463998 is an apocalyptic number.

16463998 is a deficient number, since it is larger than the sum of its proper divisors (9305810).

16463998 is a wasteful number, since it uses less digits than its factorization.

16463998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357938.

The product of its digits is 279936, while the sum is 46.

The square root of 16463998 is about 4057.5852424810. The cubic root of 16463998 is about 254.3968726954.

The spelling of 16463998 in words is "sixteen million, four hundred sixty-three thousand, nine hundred ninety-eight".