721063074 has 24 divisors (see below), whose sum is σ = 1453765968. Its totient is φ = 238429800.

The previous prime is 721063073. The next prime is 721063097. The reversal of 721063074 is 470360127.

721063074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (721063073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93049 + ... + 100499.

It is an arithmetic number, because the mean of its divisors is an integer number (60573582).

Almost surely, 2^721063074 is an apocalyptic number.

721063074 is an abundant number, since it is smaller than the sum of its proper divisors (732702894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

721063074 is a wasteful number, since it uses less digits than its factorization.

721063074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710 (or 7583 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 721063074 is about 26852.6176377649. The cubic root of 721063074 is about 896.7218495050.

The spelling of 721063074 in words is "seven hundred twenty-one million, sixty-three thousand, seventy-four".