72827261 has 8 divisors (see below), whose sum is σ = 79048704. Its totient is φ = 66694320.

The previous prime is 72827239. The next prime is 72827273. The reversal of 72827261 is 16272827.

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 72827261 - 2¹⁴ = 72810877 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 (72827221) 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, 20405 + ... + 23706.

It is an arithmetic number, because the mean of its divisors is an integer number (9881088).

Almost surely, 2^72827261 is an apocalyptic number.

It is an amenable number.

72827261 is a deficient number, since it is larger than the sum of its proper divisors (6221443).

72827261 is a wasteful number, since it uses less digits than its factorization.

72827261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44251.

The product of its digits is 18816, while the sum is 35.

The square root of 72827261 is about 8533.8889727955. Note that the first 3 decimals coincide. The cubic root of 72827261 is about 417.6040086525.

The spelling of 72827261 in words is "seventy-two million, eight hundred twenty-seven thousand, two hundred sixty-one".