247598402 has 4 divisors (see below), whose sum is σ = 371397606. Its totient is φ = 123799200.

The previous prime is 247598401. The next prime is 247598419. The reversal of 247598402 is 204895742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204895742 = 2 ⋅102447871.

It can be written as a sum of positive squares in only one way, i.e., 241833601 + 5764801 = 15551^2 + 2401^2 .

It is a super-2 number, since 2×247598402² = 122609937345907208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247598402.

It is not an unprimeable number, because it can be changed into a prime (247598401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61899599 + ... + 61899602.

Almost surely, 2^247598402 is an apocalyptic number.

247598402 is a deficient number, since it is larger than the sum of its proper divisors (123799204).

247598402 is a wasteful number, since it uses less digits than its factorization.

247598402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123799203.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 247598402 is about 15735.2598326180. The cubic root of 247598402 is about 627.9368149474.

The spelling of 247598402 in words is "two hundred forty-seven million, five hundred ninety-eight thousand, four hundred two".