247078801 has 2 divisors, whose sum is σ = 247078802. Its totient is φ = 247078800.

The previous prime is 247078771. The next prime is 247078813. The reversal of 247078801 is 108870742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207388801 + 39690000 = 14401^2 + 6300^2 .

It is a cyclic number.

It is not a de Polignac number, because 247078801 - 2¹⁹ = 246554513 is a prime.

It is a super-2 number, since 2×247078801² = 122095867807195202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247078841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123539400 + 123539401.

It is an arithmetic number, because the mean of its divisors is an integer number (123539401).

Almost surely, 2^247078801 is an apocalyptic number.

It is an amenable number.

247078801 is a deficient number, since it is larger than the sum of its proper divisors (1).

247078801 is an equidigital number, since it uses as much as digits as its factorization.

247078801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 247078801 is about 15718.7404393609. The cubic root of 247078801 is about 627.4972522009.

The spelling of 247078801 in words is "two hundred forty-seven million, seventy-eight thousand, eight hundred one".