722349587 has 2 divisors, whose sum is σ = 722349588. Its totient is φ = 722349586.

The previous prime is 722349583. The next prime is 722349611. The reversal of 722349587 is 785943227.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722349587 - 2² = 722349583 is a prime.

It is not a weakly prime, because it can be changed into another prime (722349583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361174793 + 361174794.

It is an arithmetic number, because the mean of its divisors is an integer number (361174794).

Almost surely, 2^722349587 is an apocalyptic number.

722349587 is a deficient number, since it is larger than the sum of its proper divisors (1).

722349587 is an equidigital number, since it uses as much as digits as its factorization.

722349587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 722349587 is about 26876.5620383263. The cubic root of 722349587 is about 897.2548398129.

The spelling of 722349587 in words is "seven hundred twenty-two million, three hundred forty-nine thousand, five hundred eighty-seven".