73648554 has 16 divisors (see below), whose sum is σ = 168339648. Its totient is φ = 21042432.

The previous prime is 73648517. The next prime is 73648559. The reversal of 73648554 is 45584637.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1753537 = 73648554 / (7 + 3 + 6 + 4 + 8 + 5 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (73648559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876727 + ... + 876810.

It is an arithmetic number, because the mean of its divisors is an integer number (10521228).

Almost surely, 2^73648554 is an apocalyptic number.

73648554 is an abundant number, since it is smaller than the sum of its proper divisors (94691094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73648554 is a wasteful number, since it uses less digits than its factorization.

73648554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753549.

The product of its digits is 403200, while the sum is 42.

The square root of 73648554 is about 8581.8735716625. The cubic root of 73648554 is about 419.1679559361.

The spelling of 73648554 in words is "seventy-three million, six hundred forty-eight thousand, five hundred fifty-four".