73623557 has 8 divisors (see below), whose sum is σ = 84211200. Its totient is φ = 63053424.

The previous prime is 73623541. The next prime is 73623569. The reversal of 73623557 is 75532637.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73623557 - 2⁴ = 73623541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73623557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73623527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6419 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (10526400).

Almost surely, 2^73623557 is an apocalyptic number.

It is an amenable number.

73623557 is a deficient number, since it is larger than the sum of its proper divisors (10587643).

73623557 is a wasteful number, since it uses less digits than its factorization.

73623557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755.

The product of its digits is 132300, while the sum is 38.

The square root of 73623557 is about 8580.4170644556. The cubic root of 73623557 is about 419.1205274102.

The spelling of 73623557 in words is "seventy-three million, six hundred twenty-three thousand, five hundred fifty-seven".