247029995 has 8 divisors (see below), whose sum is σ = 300008016. Its totient is φ = 195242656.

The previous prime is 247029983. The next prime is 247030013. The reversal of 247029995 is 599920742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247029995 - 2²⁰ = 245981419 is a prime.

It is a super-2 number, since 2×247029995² = 122047636859400050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297212 + ... + 298041.

It is an arithmetic number, because the mean of its divisors is an integer number (37501002).

Almost surely, 2^247029995 is an apocalyptic number.

247029995 is a deficient number, since it is larger than the sum of its proper divisors (52978021).

247029995 is an equidigital number, since it uses as much as digits as its factorization.

247029995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595341.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 247029995 is about 15717.1878846058. The cubic root of 247029995 is about 627.4559325254.

The spelling of 247029995 in words is "two hundred forty-seven million, twenty-nine thousand, nine hundred ninety-five".