247483988 has 12 divisors (see below), whose sum is σ = 434662452. Its totient is φ = 123294720.

The previous prime is 247483969. The next prime is 247483993. The reversal of 247483988 is 889384742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31158724 + 216325264 = 5582^2 + 14708^2 .

It is a super-2 number, since 2×247483988² = 122496648632768288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110573 + ... + 112788.

It is an arithmetic number, because the mean of its divisors is an integer number (36221871).

Almost surely, 2^247483988 is an apocalyptic number.

It is an amenable number.

247483988 is a deficient number, since it is larger than the sum of its proper divisors (187178464).

247483988 is a wasteful number, since it uses less digits than its factorization.

247483988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223642 (or 223640 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 247483988 is about 15731.6238195553. The cubic root of 247483988 is about 627.8400778773.

The spelling of 247483988 in words is "two hundred forty-seven million, four hundred eighty-three thousand, nine hundred eighty-eight".