72682045 has 4 divisors (see below), whose sum is σ = 87218460. Its totient is φ = 58145632.

The previous prime is 72682031. The next prime is 72682079. The reversal of 72682045 is 54028627.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40487769 + 32194276 = 6363^2 + 5674^2 .

It is a cyclic number.

It is not a de Polignac number, because 72682045 - 2¹⁵ = 72649277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72682045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7268200 + ... + 7268209.

It is an arithmetic number, because the mean of its divisors is an integer number (21804615).

Almost surely, 2^72682045 is an apocalyptic number.

It is an amenable number.

72682045 is a deficient number, since it is larger than the sum of its proper divisors (14536415).

72682045 is a wasteful number, since it uses less digits than its factorization.

72682045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14536414.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 72682045 is about 8525.3765312741. The cubic root of 72682045 is about 417.3262594764.

The spelling of 72682045 in words is "seventy-two million, six hundred eighty-two thousand, forty-five".