247971030 has 16 divisors (see below), whose sum is σ = 595130544. Its totient is φ = 66125600.

The previous prime is 247971023. The next prime is 247971037. The reversal of 247971030 is 30179742.

It is an interprime number because it is at equal distance from previous prime (247971023) and next prime (247971037).

It is a super-2 number, since 2×247971030² = 122979263438521800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247970982 and 247971000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247971037) 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, 4132821 + ... + 4132880.

It is an arithmetic number, because the mean of its divisors is an integer number (37195659).

Almost surely, 2^247971030 is an apocalyptic number.

247971030 is an abundant number, since it is smaller than the sum of its proper divisors (347159514).

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

247971030 is a wasteful number, since it uses less digits than its factorization.

247971030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265711.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 247971030 is about 15747.0959227408. The cubic root of 247971030 is about 628.2516656016.

The spelling of 247971030 in words is "two hundred forty-seven million, nine hundred seventy-one thousand, thirty".