247492465 has 8 divisors (see below), whose sum is σ = 323990208. Its totient is φ = 179994480.

The previous prime is 247492451. The next prime is 247492481. The reversal of 247492465 is 564294742.

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

It is not a de Polignac number, because 247492465 - 2⁷ = 247492337 is a prime.

It is a super-2 number, since 2×247492465² = 122505040463552450, 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, 2249877 + ... + 2249986.

It is an arithmetic number, because the mean of its divisors is an integer number (40498776).

Almost surely, 2^247492465 is an apocalyptic number.

It is an amenable number.

247492465 is a deficient number, since it is larger than the sum of its proper divisors (76497743).

247492465 is a wasteful number, since it uses less digits than its factorization.

247492465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499879.

The product of its digits is 483840, while the sum is 43.

The square root of 247492465 is about 15731.8932427092. The cubic root of 247492465 is about 627.8472462058.

The spelling of 247492465 in words is "two hundred forty-seven million, four hundred ninety-two thousand, four hundred sixty-five".