73412664 has 64 divisors (see below), whose sum is σ = 209291040. Its totient is φ = 21258240.

The previous prime is 73412657. The next prime is 73412671. The reversal of 73412664 is 46621437.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73412657) and next prime (73412671).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 12224.

Almost surely, 2^73412664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73412664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104645520).

73412664 is an abundant number, since it is smaller than the sum of its proper divisors (135878376).

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

73412664 is a wasteful number, since it uses less digits than its factorization.

73412664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13880 (or 13876 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 73412664 is about 8568.1190467920. The cubic root of 73412664 is about 418.7199576279.

The spelling of 73412664 in words is "seventy-three million, four hundred twelve thousand, six hundred sixty-four".