72926530 has 8 divisors (see below), whose sum is σ = 131267772. Its totient is φ = 29170608.

The previous prime is 72926527. The next prime is 72926533. The reversal of 72926530 is 3562927.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72926527) and next prime (72926533).

It can be written as a sum of positive squares in 2 ways, for example, as 65270241 + 7656289 = 8079^2 + 2767^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72926533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646317 + ... + 3646336.

Almost surely, 2^72926530 is an apocalyptic number.

72926530 is a deficient number, since it is larger than the sum of its proper divisors (58341242).

72926530 is a wasteful number, since it uses less digits than its factorization.

72926530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292660.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 72926530 is about 8539.7031564335. The cubic root of 72926530 is about 417.7936643325.

The spelling of 72926530 in words is "seventy-two million, nine hundred twenty-six thousand, five hundred thirty".