722429101 has 4 divisors (see below), whose sum is σ = 726420604. Its totient is φ = 718437600.

The previous prime is 722429087. The next prime is 722429117. The reversal of 722429101 is 101924227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101924227 = 19 ⋅5364433.

It can be written as a sum of positive squares in 2 ways, for example, as 85119076 + 637310025 = 9226^2 + 25245^2 .

It is a cyclic number.

It is not a de Polignac number, because 722429101 - 2⁵ = 722429069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722429101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722429171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1995480 + ... + 1995841.

It is an arithmetic number, because the mean of its divisors is an integer number (181605151).

Almost surely, 2^722429101 is an apocalyptic number.

It is an amenable number.

722429101 is a deficient number, since it is larger than the sum of its proper divisors (3991503).

722429101 is a wasteful number, since it uses less digits than its factorization.

722429101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991502.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 722429101 is about 26878.0412418762. The cubic root of 722429101 is about 897.2877609473.

The spelling of 722429101 in words is "seven hundred twenty-two million, four hundred twenty-nine thousand, one hundred one".