747242407 has 2 divisors, whose sum is σ = 747242408. Its totient is φ = 747242406.

The previous prime is 747242399. The next prime is 747242437. The reversal of 747242407 is 704242747.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 747242407 - 2³ = 747242399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747242437) 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 as a sum of consecutive naturals, namely, 373621203 + 373621204.

It is an arithmetic number, because the mean of its divisors is an integer number (373621204).

Almost surely, 2^747242407 is an apocalyptic number.

747242407 is a deficient number, since it is larger than the sum of its proper divisors (1).

747242407 is an equidigital number, since it uses as much as digits as its factorization.

747242407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 37.

The square root of 747242407 is about 27335.7349818877. The cubic root of 747242407 is about 907.4454002116.

The spelling of 747242407 in words is "seven hundred forty-seven million, two hundred forty-two thousand, four hundred seven".