247003394 has 16 divisors (see below), whose sum is σ = 421761600. Its totient is φ = 107392560.

The previous prime is 247003369. The next prime is 247003397. The reversal of 247003394 is 493300742.

247003394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247003394² = 122021353295038472, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 247003394.

It is not an unprimeable number, because it can be changed into a prime (247003397) 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, 243569 + ... + 244580.

It is an arithmetic number, because the mean of its divisors is an integer number (26360100).

Almost surely, 2^247003394 is an apocalyptic number.

247003394 is a deficient number, since it is larger than the sum of its proper divisors (174758206).

247003394 is a wasteful number, since it uses less digits than its factorization.

247003394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488185.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 247003394 is about 15716.3416226551. The cubic root of 247003394 is about 627.4334095461.

The spelling of 247003394 in words is "two hundred forty-seven million, three thousand, three hundred ninety-four".