247990941 has 48 divisors (see below), whose sum is σ = 402554880. Its totient is φ = 145827360.

The previous prime is 247990931. The next prime is 247990949. The reversal of 247990941 is 149099742.

It is a happy number.

247990941 is a `hidden beast` number, since 2 + 479 + 90 + 94 + 1 = 666.

It is not a de Polignac number, because 247990941 - 2⁶ = 247990877 is a prime.

It is a super-2 number, since 2×247990941² = 122999013636130962, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247990949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1037500 + ... + 1037738.

It is an arithmetic number, because the mean of its divisors is an integer number (8386560).

Almost surely, 2^247990941 is an apocalyptic number.

It is an amenable number.

247990941 is a deficient number, since it is larger than the sum of its proper divisors (154563939).

247990941 is a wasteful number, since it uses less digits than its factorization.

247990941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 247990941 is about 15747.7281218594. The cubic root of 247990941 is about 628.2684804477.

The spelling of 247990941 in words is "two hundred forty-seven million, nine hundred ninety thousand, nine hundred forty-one".