721467011 has 2 divisors, whose sum is σ = 721467012. Its totient is φ = 721467010.

The previous prime is 721467001. The next prime is 721467023. The reversal of 721467011 is 110764127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 721467011 - 2¹⁴ = 721450627 is a prime.

It is a super-2 number, since 2×721467011² = 1041029295922548242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (721467001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360733505 + 360733506.

It is an arithmetic number, because the mean of its divisors is an integer number (360733506).

Almost surely, 2^721467011 is an apocalyptic number.

721467011 is a deficient number, since it is larger than the sum of its proper divisors (1).

721467011 is an equidigital number, since it uses as much as digits as its factorization.

721467011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 721467011 is about 26860.1379557142. The cubic root of 721467011 is about 896.8892650566.

The spelling of 721467011 in words is "seven hundred twenty-one million, four hundred sixty-seven thousand, eleven".