73649856 has 56 divisors (see below), whose sum is σ = 222707200. Its totient is φ = 21042432.

The previous prime is 73649843. The next prime is 73649861. The reversal of 73649856 is 65894637.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26056 + ... + 28743.

Almost surely, 2^73649856 is an apocalyptic number.

It is an amenable number.

73649856 is an abundant number, since it is smaller than the sum of its proper divisors (149057344).

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

73649856 is a wasteful number, since it uses less digits than its factorization.

73649856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54821 (or 54811 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 73649856 is about 8581.9494288885. The cubic root of 73649856 is about 419.1704260161.

The spelling of 73649856 in words is "seventy-three million, six hundred forty-nine thousand, eight hundred fifty-six".