73620289 has 4 divisors (see below), whose sum is σ = 73637824. Its totient is φ = 73602756.

The previous prime is 73620271. The next prime is 73620301. The reversal of 73620289 is 98202637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73620289 - 2⁷ = 73620161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73620089) 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, 1684 + ... + 12250.

It is an arithmetic number, because the mean of its divisors is an integer number (18409456).

Almost surely, 2^73620289 is an apocalyptic number.

It is an amenable number.

73620289 is a deficient number, since it is larger than the sum of its proper divisors (17535).

73620289 is a wasteful number, since it uses less digits than its factorization.

73620289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17534.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 73620289 is about 8580.2266287086. The cubic root of 73620289 is about 419.1143260158.

It can be divided in two parts, 736202 and 89, that added together give a triangular number (736291 = T₁₂₁₃).

The spelling of 73620289 in words is "seventy-three million, six hundred twenty thousand, two hundred eighty-nine".