72046061 has 4 divisors (see below), whose sum is σ = 73803324. Its totient is φ = 70288800.

The previous prime is 72046049. The next prime is 72046087. The reversal of 72046061 is 16064027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16064027 = 7 ⋅2294861.

It can be written as a sum of positive squares in 2 ways, for example, as 34456900 + 37589161 = 5870^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 72046061 - 2⁶ = 72045997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72046061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72046031) 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, 878570 + ... + 878651.

It is an arithmetic number, because the mean of its divisors is an integer number (18450831).

Almost surely, 2^72046061 is an apocalyptic number.

It is an amenable number.

72046061 is a deficient number, since it is larger than the sum of its proper divisors (1757263).

72046061 is a wasteful number, since it uses less digits than its factorization.

72046061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757262.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 72046061 is about 8487.9951107432. The cubic root of 72046061 is about 416.1054593484.

The spelling of 72046061 in words is "seventy-two million, forty-six thousand, sixty-one".