73406886 has 16 divisors (see below), whose sum is σ = 167787264. Its totient is φ = 20973384.

The previous prime is 73406881. The next prime is 73406909. The reversal of 73406886 is 68860437.

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: 1747783 = 73406886 / (7 + 3 + 4 + 0 + 6 + 8 + 8 + 6).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73406881) 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, 873850 + ... + 873933.

It is an arithmetic number, because the mean of its divisors is an integer number (10486704).

Almost surely, 2^73406886 is an apocalyptic number.

73406886 is an abundant number, since it is smaller than the sum of its proper divisors (94380378).

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

73406886 is a wasteful number, since it uses less digits than its factorization.

73406886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747795.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 73406886 is about 8567.7818599682. The cubic root of 73406886 is about 418.7089721146.

The spelling of 73406886 in words is "seventy-three million, four hundred six thousand, eight hundred eighty-six".