47198688 has 24 divisors (see below), whose sum is σ = 123896808. Its totient is φ = 15732864.

The previous prime is 47198687. The next prime is 47198693. The reversal of 47198688 is 88689174.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×47198688² = 4455432297842688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47198688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47198687) 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, 245731 + ... + 245922.

It is an arithmetic number, because the mean of its divisors is an integer number (5162367).

Almost surely, 2^47198688 is an apocalyptic number.

47198688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47198688 is an abundant number, since it is smaller than the sum of its proper divisors (76698120).

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

47198688 is a wasteful number, since it uses less digits than its factorization.

47198688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491666 (or 491658 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 47198688 is about 6870.1301297719. The cubic root of 47198688 is about 361.3904253259.

The spelling of 47198688 in words is "forty-seven million, one hundred ninety-eight thousand, six hundred eighty-eight".