721341027 has 24 divisors (see below), whose sum is σ = 1139933808. Its totient is φ = 435916800.

The previous prime is 721341001. The next prime is 721341029. The reversal of 721341027 is 720143127.

It is a happy number.

It is not a de Polignac number, because 721341027 - 2⁷ = 721340899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (721341029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24627 + ... + 45267.

It is an arithmetic number, because the mean of its divisors is an integer number (47497242).

Almost surely, 2^721341027 is an apocalyptic number.

721341027 is a deficient number, since it is larger than the sum of its proper divisors (418592781).

721341027 is a wasteful number, since it uses less digits than its factorization.

721341027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21011 (or 21008 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 721341027 is about 26857.7926680507. The cubic root of 721341027 is about 896.8370564903.

The spelling of 721341027 in words is "seven hundred twenty-one million, three hundred forty-one thousand, twenty-seven".