72799105 has 16 divisors (see below), whose sum is σ = 88465104. Its totient is φ = 57507840.

The previous prime is 72799079. The next prime is 72799123. The reversal of 72799105 is 50199727.

It can be written as a sum of positive squares in 8 ways, for example, as 12845056 + 59954049 = 3584^2 + 7743^2 .

It is not a de Polignac number, because 72799105 - 2⁷ = 72798977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232429 + ... + 232741.

It is an arithmetic number, because the mean of its divisors is an integer number (5529069).

Almost surely, 2^72799105 is an apocalyptic number.

It is an amenable number.

72799105 is a deficient number, since it is larger than the sum of its proper divisors (15665999).

72799105 is a wasteful number, since it uses less digits than its factorization.

72799105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 72799105 is about 8532.2391551105. The cubic root of 72799105 is about 417.5501846041.

It can be divided in two parts, 7279 and 9105, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 72799105 in words is "seventy-two million, seven hundred ninety-nine thousand, one hundred five".