247212492 has 24 divisors (see below), whose sum is σ = 577124352. Its totient is φ = 82362000.

The previous prime is 247212491. The next prime is 247212509. The reversal of 247212492 is 294212742.

It is a super-2 number, since 2×247212492² = 122228032401700128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247212491) 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, 27117 + ... + 35067.

It is an arithmetic number, because the mean of its divisors is an integer number (24046848).

Almost surely, 2^247212492 is an apocalyptic number.

It is an amenable number.

247212492 is an abundant number, since it is smaller than the sum of its proper divisors (329911860).

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

247212492 is a wasteful number, since it uses less digits than its factorization.

247212492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10549 (or 10547 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 247212492 is about 15722.9924632686. The cubic root of 247212492 is about 627.6104085551.

The spelling of 247212492 in words is "two hundred forty-seven million, two hundred twelve thousand, four hundred ninety-two".