247516672 has 80 divisors (see below), whose sum is σ = 546183792. Its totient is φ = 111329280.

The previous prime is 247516663. The next prime is 247516673. The reversal of 247516672 is 276615742.

It is a super-2 number, since 2×247516672² = 122529005835911168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247516673) 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, 272443 + ... + 273349.

Almost surely, 2^247516672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247516672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273091896).

247516672 is an abundant number, since it is smaller than the sum of its proper divisors (298667120).

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

247516672 is an equidigital number, since it uses as much as digits as its factorization.

247516672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 963 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 247516672 is about 15732.6625845723. The cubic root of 247516672 is about 627.8677152502.

The spelling of 247516672 in words is "two hundred forty-seven million, five hundred sixteen thousand, six hundred seventy-two".