73554641 has 4 divisors (see below), whose sum is σ = 73597284. Its totient is φ = 73512000.

The previous prime is 73554629. The next prime is 73554647. The reversal of 73554641 is 14645537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14645537 = 383 ⋅38239.

It can be written as a sum of positive squares in 2 ways, for example, as 39740416 + 33814225 = 6304^2 + 5815^2 .

It is a cyclic number.

It is not a de Polignac number, because 73554641 - 2¹⁸ = 73292497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73554647) 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, 18620 + ... + 22221.

It is an arithmetic number, because the mean of its divisors is an integer number (18399321).

Almost surely, 2^73554641 is an apocalyptic number.

It is an amenable number.

73554641 is a deficient number, since it is larger than the sum of its proper divisors (42643).

73554641 is a wasteful number, since it uses less digits than its factorization.

73554641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42642.

The product of its digits is 50400, while the sum is 35.

The square root of 73554641 is about 8576.4002355301. The cubic root of 73554641 is about 418.9897127247.

The spelling of 73554641 in words is "seventy-three million, five hundred fifty-four thousand, six hundred forty-one".