247384998 has 48 divisors (see below), whose sum is σ = 616730400. Its totient is φ = 70201728.

The previous prime is 247384967. The next prime is 247384999. The reversal of 247384998 is 899483742.

247384998 is a `hidden beast` number, since 2 + 473 + 84 + 9 + 98 = 666.

It is a super-2 number, since 2×247384998² = 122398674470920008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247384999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12186 + ... + 25362.

It is an arithmetic number, because the mean of its divisors is an integer number (12848550).

Almost surely, 2^247384998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247384998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308365200).

247384998 is an abundant number, since it is smaller than the sum of its proper divisors (369345402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247384998 is a wasteful number, since it uses less digits than its factorization.

247384998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13341 (or 13338 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 247384998 is about 15728.4772943855. The cubic root of 247384998 is about 627.7563577438.

The spelling of 247384998 in words is "two hundred forty-seven million, three hundred eighty-four thousand, nine hundred ninety-eight".