207480739 has 2 divisors, whose sum is σ = 207480740. Its totient is φ = 207480738.

The previous prime is 207480697. The next prime is 207480751. The reversal of 207480739 is 937084702.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207480739 is a prime.

It is a super-2 number, since 2×207480739² = 86096514111972242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (207480439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103740369 + 103740370.

It is an arithmetic number, because the mean of its divisors is an integer number (103740370).

Almost surely, 2^207480739 is an apocalyptic number.

207480739 is a deficient number, since it is larger than the sum of its proper divisors (1).

207480739 is an equidigital number, since it uses as much as digits as its factorization.

207480739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 207480739 is about 14404.1917163026. The cubic root of 207480739 is about 592.0057551714.

The spelling of 207480739 in words is "two hundred seven million, four hundred eighty thousand, seven hundred thirty-nine".