72247008 has 48 divisors (see below), whose sum is σ = 200808720. Its totient is φ = 22665216.

The previous prime is 72246989. The next prime is 72247027. The reversal of 72247008 is 80074227.

It is an interprime number because it is at equal distance from previous prime (72246989) and next prime (72247027).

It is a tau number, because it is divible by the number of its divisors (48).

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, 20503 + ... + 23766.

It is an arithmetic number, because the mean of its divisors is an integer number (4183515).

Almost surely, 2^72247008 is an apocalyptic number.

It is an amenable number.

72247008 is an abundant number, since it is smaller than the sum of its proper divisors (128561712).

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

72247008 is a wasteful number, since it uses less digits than its factorization.

72247008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44299 (or 44291 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 72247008 is about 8499.8239981778. The cubic root of 72247008 is about 416.4919598941.

The spelling of 72247008 in words is "seventy-two million, two hundred forty-seven thousand, eight".