720133747 has 2 divisors, whose sum is σ = 720133748. Its totient is φ = 720133746.

The previous prime is 720133699. The next prime is 720133793. The reversal of 720133747 is 747331027.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720133747 is a prime.

It is a super-2 number, since 2×720133747² = 1037185227136520018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (720113747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360066873 + 360066874.

It is an arithmetic number, because the mean of its divisors is an integer number (360066874).

Almost surely, 2^720133747 is an apocalyptic number.

720133747 is a deficient number, since it is larger than the sum of its proper divisors (1).

720133747 is an equidigital number, since it uses as much as digits as its factorization.

720133747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 720133747 is about 26835.3078424675. The cubic root of 720133747 is about 896.3364435088.

The spelling of 720133747 in words is "seven hundred twenty million, one hundred thirty-three thousand, seven hundred forty-seven".