739661731 has 2 divisors, whose sum is σ = 739661732. Its totient is φ = 739661730.

The previous prime is 739661723. The next prime is 739661801. The reversal of 739661731 is 137166937.

739661731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (137166937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 739661731 - 2³ = 739661723 is a prime.

It is a super-5 number, since 5×739661731⁵ (a number of 46 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (739662731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369830865 + 369830866.

It is an arithmetic number, because the mean of its divisors is an integer number (369830866).

Almost surely, 2^739661731 is an apocalyptic number.

739661731 is a deficient number, since it is larger than the sum of its proper divisors (1).

739661731 is an equidigital number, since it uses as much as digits as its factorization.

739661731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 43.

The square root of 739661731 is about 27196.7227988962. The cubic root of 739661731 is about 904.3663262484.

The spelling of 739661731 in words is "seven hundred thirty-nine million, six hundred sixty-one thousand, seven hundred thirty-one".