723740147 has 4 divisors (see below), whose sum is σ = 779412480. Its totient is φ = 668067816.

The previous prime is 723740141. The next prime is 723740161. The reversal of 723740147 is 741047327.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741047327 = 23 ⋅32219449.

It is not a de Polignac number, because 723740147 - 2¹² = 723736051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723740141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27836147 + ... + 27836172.

It is an arithmetic number, because the mean of its divisors is an integer number (194853120).

Almost surely, 2^723740147 is an apocalyptic number.

723740147 is a deficient number, since it is larger than the sum of its proper divisors (55672333).

723740147 is a wasteful number, since it uses less digits than its factorization.

723740147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55672332.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 723740147 is about 26902.4189804560. The cubic root of 723740147 is about 897.8302246161.

The spelling of 723740147 in words is "seven hundred twenty-three million, seven hundred forty thousand, one hundred forty-seven".