72450841 has 4 divisors (see below), whose sum is σ = 73817892. Its totient is φ = 71083792.

The previous prime is 72450827. The next prime is 72450853. The reversal of 72450841 is 14805427.

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 60918025 + 11532816 = 7805^2 + 3396^2 .

It is a cyclic number.

It is not a de Polignac number, because 72450841 - 2¹¹ = 72448793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72450041) 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, 683446 + ... + 683551.

It is an arithmetic number, because the mean of its divisors is an integer number (18454473).

Almost surely, 2^72450841 is an apocalyptic number.

It is an amenable number.

72450841 is a deficient number, since it is larger than the sum of its proper divisors (1367051).

72450841 is a wasteful number, since it uses less digits than its factorization.

72450841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367050.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 72450841 is about 8511.8059775820. The cubic root of 72450841 is about 416.8832798672.

The spelling of 72450841 in words is "seventy-two million, four hundred fifty thousand, eight hundred forty-one".