747020247 has 4 divisors (see below), whose sum is σ = 996027000. Its totient is φ = 498013496.

The previous prime is 747020233. The next prime is 747020279. The reversal of 747020247 is 742020747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 747020247 - 2⁴ = 747020231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747020227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124503372 + ... + 124503377.

It is an arithmetic number, because the mean of its divisors is an integer number (249006750).

Almost surely, 2^747020247 is an apocalyptic number.

747020247 is a deficient number, since it is larger than the sum of its proper divisors (249006753).

747020247 is a wasteful number, since it uses less digits than its factorization.

747020247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249006752.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 747020247 is about 27331.6711344184. The cubic root of 747020247 is about 907.3554615026.

The spelling of 747020247 in words is "seven hundred forty-seven million, twenty thousand, two hundred forty-seven".