73431064 has 32 divisors (see below), whose sum is σ = 162432000. Its totient is φ = 30454560.

The previous prime is 73431047. The next prime is 73431073. The reversal of 73431064 is 46013437.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 19414 + ... + 22885.

It is an arithmetic number, because the mean of its divisors is an integer number (5076000).

Almost surely, 2^73431064 is an apocalyptic number.

It is an amenable number.

73431064 is an abundant number, since it is smaller than the sum of its proper divisors (89000936).

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

73431064 is a wasteful number, since it uses less digits than its factorization.

73431064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42343 (or 42339 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 73431064 is about 8569.1927274394. The cubic root of 73431064 is about 418.7549370770.

The spelling of 73431064 in words is "seventy-three million, four hundred thirty-one thousand, sixty-four".