723629101 has 12 divisors (see below), whose sum is σ = 784571508. Its totient is φ = 667115904.

The previous prime is 723629057. The next prime is 723629119. The reversal of 723629101 is 101926327.

It can be written as a sum of positive squares in 6 ways, for example, as 3511876 + 720117225 = 1874^2 + 26835^2 .

It is not a de Polignac number, because 723629101 - 2⁹ = 723628589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723629161) 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, 158811 + ... + 163303.

It is an arithmetic number, because the mean of its divisors is an integer number (65380959).

Almost surely, 2^723629101 is an apocalyptic number.

It is an amenable number.

723629101 is a deficient number, since it is larger than the sum of its proper divisors (60942407).

723629101 is a wasteful number, since it uses less digits than its factorization.

723629101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472 (or 5459 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 723629101 is about 26900.3550348318. The cubic root of 723629101 is about 897.7843031828.

The spelling of 723629101 in words is "seven hundred twenty-three million, six hundred twenty-nine thousand, one hundred one".