73726361 has 4 divisors (see below), whose sum is σ = 74013492. Its totient is φ = 73439232.

The previous prime is 73726343. The next prime is 73726379. The reversal of 73726361 is 16362737.

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: 16362737 = 229 ⋅71453.

It is an interprime number because it is at equal distance from previous prime (73726343) and next prime (73726379).

It can be written as a sum of positive squares in 2 ways, for example, as 38204761 + 35521600 = 6181^2 + 5960^2 .

It is a cyclic number.

It is not a de Polignac number, because 73726361 - 2²⁶ = 6617497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73726391) 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, 143180 + ... + 143693.

It is an arithmetic number, because the mean of its divisors is an integer number (18503373).

Almost surely, 2^73726361 is an apocalyptic number.

It is an amenable number.

73726361 is a deficient number, since it is larger than the sum of its proper divisors (287131).

73726361 is a wasteful number, since it uses less digits than its factorization.

73726361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287130.

The product of its digits is 31752, while the sum is 35.

The square root of 73726361 is about 8586.4055925632. The cubic root of 73726361 is about 419.3155158490.

The spelling of 73726361 in words is "seventy-three million, seven hundred twenty-six thousand, three hundred sixty-one".