721410147 has 12 divisors (see below), whose sum is σ = 1103333400. Its totient is φ = 452649408.

The previous prime is 721410121. The next prime is 721410149. The reversal of 721410147 is 741014127.

It is not a de Polignac number, because 721410147 - 2⁸ = 721409891 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 721410147.

It is not an unprimeable number, because it can be changed into a prime (721410149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2357397 + ... + 2357702.

It is an arithmetic number, because the mean of its divisors is an integer number (91944450).

Almost surely, 2^721410147 is an apocalyptic number.

721410147 is a deficient number, since it is larger than the sum of its proper divisors (381923253).

721410147 is a wasteful number, since it uses less digits than its factorization.

721410147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715122 (or 4715119 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 721410147 is about 26859.0794146039. The cubic root of 721410147 is about 896.8657010080.

The spelling of 721410147 in words is "seven hundred twenty-one million, four hundred ten thousand, one hundred forty-seven".