72350737 has 8 divisors (see below), whose sum is σ = 74940840. Its totient is φ = 69767040.

The previous prime is 72350731. The next prime is 72350743. The reversal of 72350737 is 73705327.

It is an interprime number because it is at equal distance from previous prime (72350731) and next prime (72350743).

It can be written as a sum of positive squares in 4 ways, for example, as 3111696 + 69239041 = 1764^2 + 8321^2 .

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

It is not a de Polignac number, because 72350737 - 2¹⁹ = 71826449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72350731) 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, 40687 + ... + 42427.

It is an arithmetic number, because the mean of its divisors is an integer number (9367605).

Almost surely, 2^72350737 is an apocalyptic number.

It is an amenable number.

72350737 is a deficient number, since it is larger than the sum of its proper divisors (2590103).

72350737 is a wasteful number, since it uses less digits than its factorization.

72350737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203.

The product of its (nonzero) digits is 30870, while the sum is 34.

The square root of 72350737 is about 8505.9236417922. The cubic root of 72350737 is about 416.6911913742.

The spelling of 72350737 in words is "seventy-two million, three hundred fifty thousand, seven hundred thirty-seven".