72745357 has 8 divisors (see below), whose sum is σ = 78442560. Its totient is φ = 67235040.

The previous prime is 72745327. The next prime is 72745381. The reversal of 72745357 is 75354727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72745357 - 2¹¹ = 72743309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72745327) 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, 45913 + ... + 47470.

It is an arithmetic number, because the mean of its divisors is an integer number (9805320).

Almost surely, 2^72745357 is an apocalyptic number.

It is an amenable number.

72745357 is a deficient number, since it is larger than the sum of its proper divisors (5697203).

72745357 is a wasteful number, since it uses less digits than its factorization.

72745357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93443.

The product of its digits is 205800, while the sum is 40.

The square root of 72745357 is about 8529.0888727929. The cubic root of 72745357 is about 417.4473993994.

The spelling of 72745357 in words is "seventy-two million, seven hundred forty-five thousand, three hundred fifty-seven".