72347500 has 60 divisors (see below), whose sum is σ = 162129352. Its totient is φ = 28224000.

The previous prime is 72347479. The next prime is 72347507. The reversal of 72347500 is 574327.

It is not an unprimeable number, because it can be changed into a prime (72347507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107164 + ... + 107836.

Almost surely, 2^72347500 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 72347500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81064676).

72347500 is an abundant number, since it is smaller than the sum of its proper divisors (89781852).

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

72347500 is a wasteful number, since it uses less digits than its factorization.

72347500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72347500 is about 8505.7333605045. The cubic root of 72347500 is about 416.6849769731.

The spelling of 72347500 in words is "seventy-two million, three hundred forty-seven thousand, five hundred".